About this project

The Atlas of Cities is a free educational and creative website. It uses illustrated cities to help visitors notice how cities work and think about what makes a good place to live.

What is real and what is imagined

Ancient Egypt and ancient Rome are historical settings. Each of their building pages keeps history separate from the artist's interpretation and lists the sources it is based on. The illustrations are not exact reconstructions; photos of real sites show what survives today.

The modern town is imagined, but its pages explain real buildings, vehicles and systems: why towns need them, how they are built and who they serve.

The green elven world and robotic future are imagined and speculative. They don't describe real places, real cultures or predictions. Each page uses labels so you always know what you are reading:

• History and Real world facts about the past and about real places, technology and research, with sources.
• Imagined ideas that belong to the fantasy world.
• Possible future ideas being researched or proposed, which may or may not happen.

The Heavenly City is imagined too, inspired by the Bible's picture of the heavenly city. As you explore it, its Gospel sections tell the story of Jesus in 35 parts, as the Bible tells it, with chapter and verse, and its Bible sections share more words from Scripture. A few elven pages also share Bible verses about God the Creator. Bible quotations are from the Berean Standard Bible, which is in the public domain.

Privacy

This site has no accounts, forms, comments, chat, ads, analytics or tracking. It sets no cookies and loads nothing from other websites. Your web host may keep standard server logs.

Passport stamps, quiz scores and the city you build are saved only in your own browser and never sent anywhere. You can clear them on the passport page.

Donations are optional and handled entirely by Patreon, a separate website with its own privacy policy. This site never sees payment or personal details. See Support this project.

Things in the shop are bought on a store website, under that store's own privacy policy. This site never sees those payment details either.

Accessibility

Every building is listed in text as well as on the map. The site works with a keyboard and screen readers, respects reduced-motion settings, and has no autoplay or flashing effects.

Artwork and reuse

All illustrations of the six worlds are free for everyone to use, under the Creative Commons Attribution 4.0 (CC BY 4.0) license. You can copy, print, change, share and use them for any purpose, including in lessons, books, websites and commercial projects. The only condition is to credit them, for example: "Illustration: The Atlas of Cities".

Save or print any of them from the Artwork page.

The teacher guides, worksheets, glossary and question bank are free to print and share for teaching. Please credit The Atlas of Cities.

Photos of real places come from Wikimedia Commons and are public domain or shared under Creative Commons licenses. Each photo is credited where it appears, and all licenses are listed on the photo credits page.

Sources

The building pages are based on these sources, listed by world. Each page also lists the sources it uses.

Ancient Egypt

• The Bible, Genesis
• The Bible, Exodus
• Encyclopaedia Britannica, "Ancient Egypt"
• Encyclopaedia Britannica, "Pyramids of Giza"
• Encyclopaedia Britannica, "Khufu"
• Encyclopaedia Britannica, "Great Sphinx"
• Encyclopaedia Britannica, "Obelisk"
• Encyclopaedia Britannica, "Hatshepsut"
• Encyclopaedia Britannica, "Karnak"
• Encyclopaedia Britannica, "Pylon"
• Encyclopaedia Britannica, "Colossi of Memnon"
• Encyclopaedia Britannica, "Tell el-Amarna"
• Encyclopaedia Britannica, "Bastet"
• Encyclopaedia Britannica, "Scribe" and "Hieratic script"
• Encyclopaedia Britannica, "Papyrus"
• Encyclopaedia Britannica, "Library of Alexandria"
• Encyclopaedia Britannica, "Nile River"
• Encyclopaedia Britannica, "Shaduf"
• Encyclopaedia Britannica, "Punt"
• Encyclopaedia Britannica, "Nubia"
• UNESCO World Heritage Centre, "Memphis and its Necropolis – the Pyramid Fields from Giza to Dahshur"
• UNESCO World Heritage Centre, "Ancient Thebes with its Necropolis"
• UNESCO World Heritage Centre, "Nubian Monuments from Abu Simbel to Philae"
• Smarthistory, "Temple of Amun-Re and the Hypostyle Hall, Karnak"
• Smarthistory, "Seated Scribe"
• University of Memphis, Karnak Great Hypostyle Hall Project
• The Metropolitan Museum of Art, models from the tomb of Meketre (granary, garden and boats), about 1980 BC
• British Museum, paintings from the tomb-chapel of Nebamun (garden pool, banquet and marsh hunt)
• British Museum, the Book of the Dead of Nakht (EA 10471)
• British Museum, the Gayer-Anderson cat
• World History Encyclopedia, "Deir el-Medina"
• World History Encyclopedia, "House of Life"
• Katharina Zinn, "Libraries, Pharaonic Egypt", The Encyclopedia of Ancient History (2013)
• Egyptian Ministry of Tourism and Antiquities, announcement of a House of Life found at the Ramesseum, Luxor (2025)
• Pierre Tallet and colleagues, the Wadi al-Jarf papyri ("the diary of Merer"), found in 2013
• Ancient Egypt Research Associates (Mark Lehner), excavations of the pyramid builders' town at Giza
• Mark Lehner, The Complete Pyramids (1997)
• Dieter Arnold, Building in Egypt: Pharaonic Stone Masonry (1991)
• Richard H. Wilkinson, The Complete Temples of Ancient Egypt (2000)
• Barry Kemp, The City of Akhenaten and Nefertiti: Amarna and Its People (2012)
• Ian Shaw (editor), The Oxford History of Ancient Egypt (2000)
• Herodotus, Histories, Book 2 (about 430 BC)
• The Instruction of Khety ("The Satire of the Trades"), Middle Kingdom
• Stela of Amenhotep II near the Great Sphinx, about 1420 BC (his feats of archery and rowing)
• The Amarna letters (about 1360 to 1335 BC), letters between the pharaohs and foreign rulers
• The Turin Strike Papyrus (about 1157 BC), records of the workers of Deir el-Medina
• Tomb of the vizier Rekhmire (TT100), Thebes: painted scenes of brickmaking and building, about 1450 BC
• Van Neer and colleagues, "More evidence for cat taming at the Predynastic elite cemetery of Hierakonpolis", Journal of Archaeological Science (2014)
• Anna Stevens and colleagues, "From representation to reality: ancient Egyptian wax head cones from Amarna", Antiquity (2019)
• Griffith Institute, University of Oxford, Howard Carter's records of the tomb of Tutankhamun
• Petrie Museum of Egyptian Archaeology, University College London, pottery "soul house" models
• Kathryn Bard and Rodolfo Fattovich, excavations at the harbor of Mersa/Wadi Gawasis on the Red Sea (2001 to 2011)
• Museo Egizio, Turin, the Turin Papyrus Map (about 1160 BC)
• The Metropolitan Museum of Art, floral collars from Tutankhamun's embalming cache
• Kon-Tiki Museum, Oslo, "Ra, 1969 - Ra II, 1970"
• Egyptian Museum, Cairo, wooden model soldiers from the tomb of Mesehti, Asyut, about 2000 BC
• Tomb of Djehutynefer (TT104), Thebes: painting of his house, about 1420 BC
• French Institute for Oriental Archaeology (IFAO) and University of Liverpool, the ramp at the Hatnub quarry (2018)
• Egyptian Museum, Cairo, model of a cattle count from the tomb of Meketre, about 1980 BC
• Encyclopaedia Britannica, "Eratosthenes"
• Encyclopaedia Britannica, "Chariot"
• Encyclopaedia Britannica, "Camel" and "Dromedary"
• Martin Heide and Joaquín Peters, Camels in the Biblical World (2021)
• Reliefs of Ramesses III at Medinet Habu, Thebes, about 1175 BC
• Fall, Bonn and colleagues, "Sliding Friction on Wet and Dry Sand", Physical Review Letters (2014)

Ancient Rome

• The Bible, Gospel of Luke
• Encyclopaedia Britannica, "Edict of Milan"
• Encyclopaedia Britannica, "Aqueduct"
• Encyclopaedia Britannica, "Thermae" and "Baths of Caracalla"
• Encyclopaedia Britannica, "Circus" and "Chariot racing"
• Encyclopaedia Britannica, "Basilica" and "Basilica Ulpia"
• Encyclopaedia Britannica, "Arch of Titus", "Arch of Constantine" and "Arch of Septimius Severus"
• Encyclopaedia Britannica, "Vesta"
• Encyclopaedia Britannica, "Aerarium"
• Encyclopaedia Britannica, "Roman Forum"
• Encyclopaedia Britannica, "Colosseum"
• Encyclopaedia Britannica, "Ephesus"
• Encyclopaedia Britannica, "Pantheon"
• Encyclopaedia Britannica, "Trajan's Column"
• Encyclopaedia Britannica, "Aurelian Wall" and "Hadrian's Wall"
• Encyclopaedia Britannica, "Pozzolana" and "Concrete"
• Smarthistory, "The Colosseum"
• Smarthistory, "The Pantheon, Rome"
• Smarthistory, "Roman domestic architecture: the insula"
• Smarthistory, "Roman domestic architecture: the domus"
• Smarthistory, "The Roman Forum (Forum Romanum)"
• Smarthistory, "Temple of Portunus, Rome"
• Smarthistory, "Arch of Constantine"
• Smarthistory, "Baths of Caracalla"
• Smarthistory, "The villa" and "A virtual tour of Hadrian's Villa"
• Smarthistory, "The Domus Aurea, Nero's Golden Palace"
• Smarthistory, "Roman funeral rituals and social status: the Amiternum tomb and the Tomb of the Haterii"
• Smarthistory, "Augustus of Primaporta"
• Smarthistory, "Ostia: an introduction"
• UNESCO World Heritage Centre, "Tower of Hercules"
• UNESCO World Heritage Centre, "Pont du Gard (Roman Aqueduct)"
• UNESCO World Heritage Centre, "Old Town of Segovia and its Aqueduct"
• UNESCO World Heritage Centre, "Villa Adriana (Tivoli)"
• UNESCO World Heritage Centre, "Villa Romana del Casale"
• UNESCO World Heritage Centre, "Archaeological Areas of Pompei, Herculaneum and Torre Annunziata"
• UNESCO World Heritage Centre, "Historic Center of Rome"
• UNESCO World Heritage Centre, "Ephesus"
• UNESCO World Heritage Centre, "Frontiers of the Roman Empire"
• UNESCO World Heritage Centre, "Maison Carrée of Nîmes"
• UNESCO World Heritage Centre, "Amphitheatre of El Jem"
• Parco archeologico del Colosseo, "Gladiators in the Arena: between Colosseum and Ludus Magnus"
• Parco Archeologico di Pompei, announcements on the Regio V thermopolium (2020)
• Vitruvius, On Architecture (1st century BC), Books 2, 5, 8 and 10
• Frontinus, The Aqueducts of Rome (about AD 97)
• Seneca, Letters to Lucilius, Letter 56 (on the noise of a bathhouse)
• Pliny the Younger, Letters, Book 2, Letter 17 (his villa at Laurentum)
• Cato the Elder, On Agriculture; Columella, On Agriculture
• Quintilian, The Orator's Education, Book 1
• Suetonius, Lives of the Caesars: Augustus, Claudius and Nero
• Encyclopaedia Britannica, "Appian Way"
• Encyclopaedia Britannica, "Education": the Roman world
• Encyclopaedia Britannica, "Mausoleum of Augustus" and "Castel Sant'Angelo"
• Strabo, Geography, Book 5
• Ludwig Boltzmann Institute for Archaeological Prospection and Virtual Archaeology, the gladiator school of Carnuntum, Austria (2011)
• UNESCO World Heritage Centre, "Historical Complex of Split with the Palace of Diocletian"
• Vindolanda writing tablets 118 and 452 (lines of Virgil copied as writing practice), Roman Inscriptions of Britain
• Parco Archeologico di Pompei, "Villa Regina in Boscoreale"
• UNESCO World Heritage Centre, "City of Bath"
• Encyclopaedia Britannica, "Roman road system"
• Tabula Heracleensis (Lex Julia Municipalis, about 45 BC), rules on wagons in the streets of Rome
• Juvenal, Satires, Book 1, Satire 3 (on traffic noise in Rome at night)
• Encyclopaedia Britannica, "Chariot" and "Triumph"
• Inscription honoring the charioteer Gaius Appuleius Diocles (CIL VI 10048), 2nd century AD
• Encyclopaedia Britannica, "Cursus publicus" (the Roman state transport service)
• University of Barcelona, CEIPAC research project on Monte Testaccio and Roman amphorae
• Encyclopaedia Britannica, "Litter" (sedan chair)
• Suetonius, "The Life of Julius Caesar", chapter 43

Modern Town

• United Nations, Department of Economic and Social Affairs, "World Urbanization Prospects: The 2018 Revision"
• UN-Habitat, "World Cities Report"
• Jane Jacobs, "The Death and Life of Great American Cities" (1961)
• Ray Oldenburg, "The Great Good Place" (1989), on "third places"
• IFLA-UNESCO Public Library Manifesto (2022)
• Digital Public Library of America, exhibition "A History of US Public Libraries: Carnegie Libraries"
• United Nations Convention on the Rights of the Child (1989), Articles 28, 29 and 31
• UNESCO, "The right to education"
• World Health Organization, "Primary health care" fact sheet and the Declaration of Astana (2018)
• Massachusetts League of Community Health Centers, "History of Community Health Centers"
• US Centers for Disease Control and Prevention, "Water Treatment" (community water systems)
• US Environmental Protection Agency, drinking water and wastewater treatment overviews
• WHO/UNICEF Joint Monitoring Program for Water Supply, Sanitation and Hygiene
• World Health Organization, "Global status report on road safety"
• National Association of City Transportation Officials, "Urban Street Design Guide"
• US Department of Justice, "2010 ADA Standards for Accessible Design"
• Encyclopaedia Britannica, "Skyscraper" and "Elevator"
• Council on Tall Buildings and Urban Habitat, tall building data and research
• International Code Council, "International Building Code" (overview)
• National Fire Protection Association, information on sprinklers and fire safety in buildings
• US Department of Energy, Energy Saver guides on insulation, air sealing and heat pumps
• International Energy Agency, "Buildings" (energy use and emissions)
• US Environmental Protection Agency, "Protect Your Family from Sources of Lead"
• US Environmental Protection Agency, "Heat Island Effect"
• World Health Organization, "Guidelines on physical activity and sedentary behavior" (2020)
• Trust for Public Land, ParkScore and the "10-minute walk" research
• National Park Service, "Frederick Law Olmsted" and Central Park history
• US Consumer Product Safety Commission, "Public Playground Safety Handbook"
• Danish Architecture Centre and the Adventure Play movement, on the Emdrup junk playground (1943)
• US Department of Agriculture, Economic Research Service, "Food Access Research Atlas"
• American Community Gardening Association
• US Bureau of Labor Statistics, "Warehousing and Storage" industry overview
• Encyclopaedia Britannica, "Containerization" and "Bar code"
• US Coast Guard, aids to navigation and lighthouse history
• National Park Service, "Maritime Heritage: Lighthouses" and the Fresnel lens
• US Forest Service and Forest History Society, history of fire lookouts and the Osborne Fire Finder
• National Interagency Fire Center, wildfire information
• National Institute of Standards and Technology, history of time zones and standard time (1883)
• UK Parliament, "The Elizabeth Tower" (Big Ben)
• National League of Cities, "Forms of Municipal Government"
• Architect of the Capitol, history of the United States Capitol and its dome
• National Conference of State Legislatures, how state legislatures work
• International Council of Museums, museum definition (2022)
• Exploratorium, San Francisco, history of the museum (founded 1969)
• City of Philadelphia, "Percent for Art" program history (1959)
• National Park Service, Vietnam Veterans Memorial and Washington Monument
• Pew Research Center, studies of religion and community life
• Encyclopaedia Britannica, "Stained glass"
• US Occupational Safety and Health Administration, "Cranes and Derricks in Construction"
• Chatham House, "Making Concrete Change: Innovation in Low-carbon Cement and Concrete" (2018)
• Encyclopaedia Britannica, "Concrete", "Steel" and "Building construction"
• US Forest Service, Forest Products Laboratory, research on cross-laminated timber
• Encyclopaedia Britannica, "Levittown" and US suburban history
• Encyclopaedia Britannica, "Stadium"
• Swedish Transport Administration, "Vision Zero" road safety policy (1997)
• Encyclopaedia Britannica, "Vietnam Veterans Memorial" and "Washington Monument"
• Americans for the Arts, Public Art Network: public art programs in the United States
• National Recreation and Park Association, research on park and recreation services
• William H. Whyte, "The Social Life of Small Urban Spaces" (1980) and the Street Life Project
• Encyclopaedia Britannica, "Automobile" and "Model T"
• Donald Shoup, "The High Cost of Free Parking" (2005)
• International Energy Agency, "Global EV Outlook"
• US National Highway Traffic Safety Administration, "Seat Belts"
• Encyclopaedia Britannica, "Taxicab" and "Taximeter"
• New York City Taxi and Limousine Commission, history and accessible vehicle rules
• Insurance Institute for Highway Safety, research on vehicle height, front-end design and pedestrian safety
• World Economic Forum, "The Future of the Last-Mile Ecosystem" (2020)
• United States Postal Service, Next Generation Delivery Vehicle program
• California Public Utilities Commission, approval of paid driverless taxi service in San Francisco (2023)
• UPS, ORION route planning and the avoidance of left turns

Elven Green World

• Janine Benyus, "Biomimicry: Innovation Inspired by Nature" (1997)
• Biomimicry Institute, AskNature database of nature-inspired design
• UNESCO World Heritage Centre, tentative list: "Jingkieng Jri: Living Root Bridge Cultural Landscapes" (2022)
• Ferdinand Ludwig and colleagues, research on Baubotanik (building with living trees)
• Stefano Boeri Architetti, "Bosco Verticale" (Vertical Forest), Milan, 2014
• Metropol Parasol, Seville, designed by J. Mayer H. (completed 2011)
• US Environmental Protection Agency, "Heat Island Effect" and "Using Trees and Vegetation to Reduce Heat Islands"
• US Environmental Protection Agency, "Green Infrastructure": rain gardens and green roofs
• US Environmental Protection Agency, "Constructed Treatment Wetlands"
• City of Arcata, California, "Arcata Marsh and Wildlife Sanctuary"
• New York City Department of Environmental Protection, watershed protection program
• IPBES, "Assessment Report on Pollinators, Pollination and Food Production" (2016)
• Xerces Society for Invertebrate Conservation, pollinator habitat guidance
• Parks Canada, "Making roads safer for wildlife" (Banff National Park crossing structures)
• Isabella Tree, "Wilding" (2018), on the Knepp Estate rewilding project
• Akira Miyawaki, research on native forest restoration; Earthwatch Europe "Tiny Forest" programme
• DarkSky International (formerly the International Dark-Sky Association)
• Crop Trust and the Norwegian Government, "Svalbard Global Seed Vault" (opened 2008), including the first withdrawal of seeds in 2015
• United Nations Environment Programme, "Food Waste Index Report 2024"
• Food and Agriculture Organization of the United Nations, "Global Food Losses and Food Waste" (2011)
• Encyclopaedia Britannica, "Photosynthesis"
• US National Renewable Energy Laboratory, solar cell efficiency research
• Royal Botanic Gardens, Kew, "Millennium Seed Bank"
• Forest School Association (UK), history and principles of forest school
• Research reviews on shinrin-yoku ("forest bathing"), a term introduced in Japan in 1982
• Smithsonian Tropical Research Institute, forest canopy research and canopy cranes
• UNESCO World Heritage Centre, "Sanctuary of Asklepios at Epidaurus"
• City and County of Denver, "Red Rocks Park and Amphitheater"
• Mick Pearce, architect, project information on the Eastgate Centre, Harare (1996)
• Government of Iceland, information on geothermal energy and district heating
• US Department of Energy, Energy Saver, "Microhydropower Systems"
• US Department of Energy, Energy Saver, "Earth-Sheltered Houses"
• Roger Ulrich, "View through a window may influence recovery from surgery", Science (1984)
• Edward O. Wilson, "Biophilia" (1984)
• The Living, "Hy-Fi" mycelium brick tower, MoMA PS1 Young Architects Program (2014)
• Research reviews on mycelium-based composite materials
• US Department of Agriculture, Animal and Plant Health Inspection Service, review of Light Bio's "Firefly Petunia" (2023)
• Arup and IBA Hamburg, "BIQ House" algae bioreactor facade (2013)
• Elinor Ostrom, "Governing the Commons" (1990); Nobel Prize in Economic Sciences (2009)
• USA National Phenology Network and the Woodland Trust "Nature's Calendar"; Kyoto cherry blossom records
• Welsh Government, "Well-being of Future Generations (Wales) Act 2015"
• Forest Stewardship Council (founded 1993)
• Repair Café Foundation (first Repair Café, Amsterdam, 2009)
• International Bamboo and Rattan Organization (INBAR)
• Council on Tall Buildings and Urban Habitat, data on tall timber buildings (Mjøstårnet, Ascent)
• International Code Council, International Residential Code, Appendix on strawbale construction
• International Society of Arboriculture, tree care guidance
• Wilhelm Barthlott and Christoph Neinhuis, "Purity of the sacred lotus" (1997), on the lotus effect
• US National Park Service, "Beavers" and their role as ecosystem engineers
• Encyclopaedia Britannica, "Bamboo"
• US Geological Survey, Water Science School, "Impervious Surfaces and Flooding"
• Encyclopaedia Britannica, "Hydroelectric power"
• Encyclopaedia Britannica, "Geothermal energy"
• US Federal Highway Administration, "Wildlife Crossing Structure Handbook" (2011)
• Fabio Falchi and colleagues, "The new world atlas of artificial night sky brightness", Science Advances (2016)
• Liz O'Brien and Richard Murray, "Forest School and its impacts on young children", Urban Forestry and Urban Greening (2007)
• Encyclopaedia Britannica, "Phenology"
• Garrett Hardin, "The Tragedy of the Commons", Science (1968)
• Future Generations Commissioner for Wales, guidance on the Well-being of Future Generations Act
• World Health Organization, "Guidelines on physical activity and sedentary behavior" (2020)
• Encyclopaedia Britannica, "Tropical rainforest"
• US Environmental Protection Agency, "Glass: Material-Specific Data"
• The Bible, Genesis
• The Bible, Psalms
• The Bible, Gospel of Matthew
• The Bible, Gospel of Mark
• The Bible, Gospel of John
• The Bible, Letter to the Colossians
• Encyclopaedia Britannica, "Sami" and "Reindeer"
• Forestry England and the British Horse Loggers, guidance on working horses in woodland
• The Henry Ford museum, "Soybean Car" (1941)
• Research reviews on natural-fiber composites (flax, hemp and kenaf) in car parts
• Dacke and colleagues, "Dung beetles use the Milky Way for orientation", Current Biology (2013)
• Research on legged and insect-inspired robots, including the Biomimicry Institute's AskNature database
• International Centre for Reindeer Husbandry, Kautokeino, Norway
• Encyclopaedia Britannica, "Horse"
• US Forest Service and the Oregon Encyclopedia, "Humongous fungus" (Armillaria ostoyae), Malheur National Forest

Robotic Future

• NASA, "Environmental Control and Life Support System" and the 2023 announcement of 98% water recovery on the International Space Station
• NASA Jet Propulsion Laboratory, MOXIE (Mars Oxygen In-Situ Resource Utilization Experiment) results, 2021-2023
• NASA, "In-Situ Resource Utilization" (using local resources on the Moon and Mars)
• NASA and US Department of Energy, Kilopower/KRUSTY test (2018) and the Fission Surface Power project
• NASA, "Veggie" plant growth system on the International Space Station
• NASA, Crew Health and Performance Exploration Analog (CHAPEA) and the Mars Dune Alpha habitat
• NASA Centennial Challenges, "3D-Printed Habitat Challenge" (2015-2019)
• NASA, Bigelow Expandable Activity Module (BEAM) on the International Space Station (2016)
• NASA, Artemis program overview, including Gateway and plans for a lunar base camp
• NASA, LCROSS mission (2009) and studies of water ice in permanently shadowed lunar craters
• NASA, "Deep Space Network" and Mars relay orbiters
• NASA, "Advanced Diagnostic Ultrasound in Microgravity" (ADUM) experiment on the International Space Station
• NASA, first "holoportation" of a doctor to the International Space Station (2021)
• NASA Human Research Program, hazards of human spaceflight (radiation, isolation, distance, gravity, hostile environments)
• NASA, exercise on the International Space Station (treadmill, cycle and ARED)
• NASA, studies of lunar dust from the Apollo missions
• NASA and Canadian Space Agency, Canadarm2, Robonaut 2 and Astrobee robots
• NASA Jet Propulsion Laboratory, Perseverance rover and Ingenuity Mars Helicopter (first powered flight on another planet, 2021)
• NASA Office of Planetary Protection and the COSPAR planetary protection policy
• NASA, history of Mission Control at Johnson Space Center, Houston
• NASA, Apollo Lunar Roving Vehicle and the Artemis Lunar Terrain Vehicle
• NASA Kennedy Space Center, Launch Complex 39 history and sound suppression systems
• NOAA Space Weather Prediction Center, space weather and the 1859 Carrington Event
• European Space Agency, MELiSSA (Micro-Ecological Life Support System Alternative) project
• European Space Agency, research on building with lunar regolith
• University of Arizona, history of Biosphere 2 (first closed mission 1991-1993)
• European Space Agency and Institute of Biomedical Problems, Mars-500 isolation study (2010-2011)
• United Nations Office for Outer Space Affairs, "Outer Space Treaty" (1967)
• NASA, "The Artemis Accords" (2020) and list of signatories
• China National Space Administration, Chang'e 4 far-side landing (2019) and Queqiao relay satellite
• NASA and Made In Space, first 3D printer on the International Space Station (2014)
• Research and review articles on the space elevator concept and the strength of carbon nanotube materials
• NASA and research reviews on artificial gravity and rotating spacecraft
• SpaceX, first landing of an orbital-class rocket booster (December 2015) and reuse of boosters
• Encyclopaedia Britannica, "Life-support system"
• Encyclopaedia Britannica, "Hydroponics"
• Encyclopaedia Britannica, "Nuclear reactor"
• Encyclopaedia Britannica, "3D printing"
• Encyclopaedia Britannica, "Speed of light"
• NASA, "Space Weather" (Heliophysics Division)
• Bradley C. Edwards, "The Space Elevator", report for the NASA Institute for Advanced Concepts (2000)
• NASA, "Apollo 13" mission history
• Central Japan Railway Company, SCMaglev (603 km/h test run, 2015), and Shanghai Maglev Transportation, line opened 2004
• Encyclopaedia Britannica, "Hovercraft" (Christopher Cockerell, 1950s)
• JAXA and NASA, 2024 agreement for a Japanese pressurized lunar rover for Artemis
• NASA, "Space Exploration Vehicle" concept and tests
• Rio Tinto, autonomous haul trucks in the Pilbara iron ore mines of Western Australia
• NASA, Commercial Lunar Payload Services (CLPS) robotic Moon deliveries
• NASA Jet Propulsion Laboratory, Ingenuity Mars Helicopter (first flight April 19, 2021; 72 flights)
• NASA and Johns Hopkins Applied Physics Laboratory, Dragonfly rotorcraft mission to Titan

Heavenly City

• The Bible, Genesis
• The Bible, 2 Kings
• The Bible, Psalms
• The Bible, Isaiah
• The Bible, Micah
• The Bible, Zechariah
• The Bible, Gospel of Matthew
• The Bible, Gospel of Mark
• The Bible, Gospel of Luke
• The Bible, Gospel of John
• The Bible, Acts of the Apostles
• The Bible, Letter to the Romans
• The Bible, First Letter to the Corinthians
• The Bible, First Letter to the Thessalonians
• The Bible, First Letter of Peter
• The Bible, Book of Revelation
• Encyclopaedia Britannica, "Aspirin"
• National Cancer Institute, "Success Story: Taxol"
• U.S. Forest Service, Great Basin bristlecone pine
• NOAA SciJinks, "What causes a rainbow?"
• Gateshead Council, "The Angel of the North"
• Encyclopaedia Britannica, "Augustus"
• UNESCO World Heritage Centre, "Birthplace of Jesus: Church of the Nativity and the Pilgrimage Route, Bethlehem"
• Encyclopaedia Britannica, "Bell"
• Encyclopaedia Britannica, "Carillon"
• National Park Service, Independence National Historical Park, "The Liberty Bell"
• Encyclopaedia Britannica, "Herod" (king of Judaea)
• The Israel Museum, Jerusalem, "Herod the Great: The King's Final Journey" (2013)
• Encyclopaedia Britannica, "Frankincense" and "Myrrh"
• Encyclopaedia Britannica, "Temple of Jerusalem" and "Western Wall"
• Israel Antiquities Authority, remains of a dwelling from the time of Jesus found in Nazareth (2009)
• UNESCO World Heritage Centre, "Baptism Site 'Bethany Beyond the Jordan' (Al-Maghtas)"
• Encyclopaedia Britannica, "Homing pigeon"
• UNESCO World Heritage Centre, "Medina of Fez"
• Encyclopaedia Britannica, "Lighthouse" and "Pharos of Alexandria"
• WHO and UNICEF Joint Monitoring Programme, "Progress on household drinking water, sanitation and hygiene 2000–2022" (2023)
• Encyclopaedia Britannica, "Dead Sea Scrolls"
• The Israel Museum, Jerusalem, the Shrine of the Book and the Dead Sea Scrolls Digital Project
• Encyclopaedia Britannica, "Sermon on the Mount"
• Kevin Krisciunas and Don Carona, "At what distance can the human eye detect a candle flame?" (2015)
• Encyclopaedia Britannica, "Lord's Prayer"
• Encyclopaedia Britannica, "Sunday school"
• Food and Agriculture Organization of the United Nations, "Why bees matter" (2018)
• Encyclopaedia Britannica, "Leaning Tower of Pisa"
• Encyclopaedia Britannica, "Amish"
• Shimon Gibson, "The Final Days of Jesus: The Archaeological Evidence" (2009)
• Feeding America, "What is a food bank?"
• Müllers (the George Müller Charitable Trust), Bristol, the history of the orphan houses
• International Olympic Committee, Olympics.com, Derek Redmond at the Barcelona 1992 Games
• Encyclopaedia Britannica, "Jericho"
• Dunn, Aknin and Norton, "Spending money on others promotes happiness", Science (2008)
• Encyclopaedia Britannica, "Passover"
• Encyclopaedia Britannica, "Last Supper", the painting by Leonardo da Vinci
• Habitat for Humanity, "History of Habitat"
• Encyclopaedia Britannica, "Gethsemane"
• National Research Council of Italy (CNR), study of the olive trees of Gethsemane (2012)
• Encyclopaedia Britannica, "Pontius Pilate"
• The Israel Museum, Jerusalem, the Pilate inscription from Caesarea
• Encyclopaedia Britannica, "Church of the Holy Sepulchre"
• Encyclopaedia Britannica, "Gold"
• Encyclopaedia Britannica, "Marble"
• Encyclopaedia Britannica, "Easter"
• The Garden Tomb (Jerusalem) Association
• U.S. Geological Survey, Water Science School, "How much does a cloud weigh?"
• UNESCO World Heritage Centre, "Archaeological Site of Philippi"
• The Oxyrhynchus Papyri, volume 15 (1922), no. 1786: a Christian hymn with musical notation
• Encyclopaedia Britannica, "Pearl"
• Encyclopaedia Britannica, "Swan"
• Shelley Wachsmann, "The Sea of Galilee Boat: A 2000-Year-Old Discovery from the Sea of Legends" (1995)
• IUCN Red List of Threatened Species, "African Wild Ass" (Equus africanus)
• Encyclopaedia Britannica, "Kush"
• Encyclopaedia Britannica, "Chariot"
• Encyclopaedia Britannica, "Maglev"
• Encyclopaedia Britannica, "Donkey"
• CNN Heroes, Luis Soriano and the Biblioburro (2010)