Image credits
244 imagesPicture questions use free images from Wikimedia Commons: public domain or Creative Commons licences that allow reuse. Images are resized and converted for the game. Thank you to every author below.
| Image | Author | Licence |
|---|---|---|
| "The School of Athens" by Raffaello Sanzio da Urbino | Raphael | Public domain |
| 01 Schwarzbär | Diginatur | CC BY-SA 3.0 |
| 080103 hakkai fuji | 名古屋太郎 | CC BY-SA 3.0 |
| 1885Benz | Supplied by Benz to William Worby Beaumont and used in his book Motor Vehicles and Motors (1900) | Public domain |
| 80 - Machu Picchu - Juin 2009 - edit | Martin St-Amant ( S23678 ) | CC BY-SA 3.0 |
| A Sunday on La Grande Jatte, Georges Seurat, 1884 | Georges Seurat | Public domain |
| Abu Simbel Temple May 30 2007 | Than217 at English Wikipedia | Public domain |
| Allée des Baobabs near Morondava, Madagascar | Frank Vassen | CC BY 2.0 |
| Andromeda Galaxy (with h-alpha) | Adam Evans | CC BY 2.0 |
| Apollo 11 Launch - GPN-2000-000630 | NASA | Public domain |
| Arc de Triomphe, Paris 21 October 2010 | Jiuguang Wang | CC BY-SA 2.0 |
| Astrolabe-Persian-18C | Andrew Dunn | CC BY-SA 2.0 |
| Attacus atlas qtl1 | Quartl | CC BY-SA 3.0 |
| Bald Eagle Portrait | Saffron Blaze | CC BY-SA 3.0 |
| Barnard 33 | Ken Crawford | CC BY-SA 3.0 |
| Botticelli-primavera | Sandro Botticelli | Public domain |
| Brandenburger Tor abends | Thomas Wolf , www.foto-tw.de | CC BY-SA 3.0 |
| Brussels - Atomium | Luca Mangiat | CC BY 4.0 |
| Bubo scandiacus (Linnaeus, 1758) Male | Michael Gäbler | CC BY-SA 3.0 |
| CairoEgMuseumTaaMaskMostlyPhotographed | Roland Unger | Public domain |
| Canestra di frutta (Caravaggio) | Caravaggio | Public domain |
| Caracal Caracal-001 | Leo za1 | CC BY-SA 3.0 |
| Caspar David Friedrich - Wanderer above the sea of fog | Caspar David Friedrich | Public domain |
| Cataratas Victoria, Zambia-Zimbabue, 2018-07-27, DD 30-34 PAN | Diego Delso | CC BY-SA 4.0 |
| Chichen Itza 3 | Daniel Schwen | CC BY-SA 4.0 |
| Clock Tower - Palace of Westminster, London - May 2007 | Diliff | CC BY 2.5 |
| Clouded leopard | Vearl Brown | CC BY-SA 2.0 |
| Colosseum in Rome-April 2007-1- copie 2B | Diliff | CC BY-SA 2.5 |
| Cotton gin EWM 2007 | Tom Murphy VII | Public domain |
| Crab Nebula | NASA , ESA , J. Hester and A. Loll (Arizona State University) | Public domain |
| Danwon Ssireum | Kim Hong-do | Public domain |
| Deadvlei Namibia | Pemba.mpimaji | CC BY-SA 4.0 |
| Dean Franklin - 06.04.03 Mount Rushmore Monument (by-sa)-3 new | Dean Franklin | CC BY 2.0 |
| Dugong dugon | Geoff Spiby / www.geoffspiby.co.za | CC BY-SA 3.0 |
| Edgar Degas - The Ballet Class - Google Art Project | Edgar Degas | Public domain |
| Empire State Building (aerial view) | Sam Valadi | Public domain |
| Enigma (crittografia) - Museo scienza e tecnologia Milano | Alessandro Nassiri | CC BY-SA 4.0 |
| Ephesus Celsus Library Façade | Benh LIEU SONG | CC BY-SA 3.0 |
| Epidaurus Theater | Morn | Public domain |
| Europa-moon-with-margins | NASA/JPL/DLR | Public domain |
| Exterior of the Leaning Tower (Pisa) in April 2024 | PaestumPaestum | CC BY 4.0 |
| Falco peregrinus good - Christopher Watson | Christopher Watson ( http://www.comebirdwatching.blogspot.com/ ) | CC BY-SA 3.0 |
| Flag of Algeria | Original: National Liberation Front of Algeria Vector: SKopp | Public domain |
| Flag of Argentina | Manuel Belgrano | Public domain |
| Flag of Australia | Original: Ivor Evans, Leslie John Hawkins, Egbert John Nuttall, Annie Dorrington and William Stevens Vector: Ian Fieggen | Public domain |
| Flag of Bangladesh | See File history below for details. | Public domain |
| Flag of Bhutan | See File history below for details. | Public domain |
| Flag of Brazil | Raimundo Teixeira Mendes | Public domain |
| Flag of Cameroon | (of code) -xfi- | Public domain |
| Flag of Canada | Created by George F. G. Stanley / E Pluribus Anthony / User:Mzajac | Public domain |
| Flag of Chile | See file history below for details. | Public domain |
| Flag of Colombia | See File history below for details. | Public domain |
| Flag of Côte d'Ivoire | See File history below for details. | Public domain |
| Flag of Ethiopia | Drawn by User:SKopp | Public domain |
| Flag of Fiji | Tessa Mackenzie | Public domain |
| Flag of France | Original: Unknown Vector: SKopp | Public domain |
| Flag of Germany | User:SKopp , User:Madden , and other users | Public domain |
| Flag of Ghana | Theodosia Okoh | Public domain |
| Flag of Greece | Unknown author Unknown author | Public domain |
| Flag of Guyana | Whitney Smith | Public domain |
| Flag of Iceland | Original: Matthías Þórðarson Vector: Árni Dagur and Magasjukur2 | Public domain |
| Flag of India | Government of India | Public domain |
| Flag of Indonesia | Jayakatwang | Public domain |
| Flag of Ireland | Éire | Public domain |
| Flag of Italy | See below. | Public domain |
| Flag of Jamaica | The SVG code is valid . This vector image was created with Inkscape by SKopp , and then manually edited by Zscout370 , Madden and others. | Public domain |
| Flag of Japan | Various | Public domain |
| Flag of Kazakhstan | Shaken Niyazbekop | Public domain |
| Flag of Kenya | User:Pumbaa80 | Public domain |
| Flag of Lebanon | Henri Pharaon | Public domain |
| Flag of Malaysia | MapGrid (old version SKopp , Zscout370 and Ranking Update ) | Public domain |
| Flag of Mexico | Omar Alejandro Covarrubias Neri , 9 April 2006. Based on the 1968 arms by Francisco Eppens Helguera and Juan Manuel Gabino Villascán. | Public domain |
| Flag of Mongolia | See File history below for details. | Public domain |
| Flag of Morocco | Denelson83 , Zscout370 | Public domain |
| Flag of Nepal | Drawn by Pumbaa80 , Achim1999 | Public domain |
| Flag of New Zealand | Original: Albert Hastings Markham Vector: Zscout370 , Hugh Jass , s. File history | Public domain |
| Flag of Nigeria | Jon Harald Søby . | Public domain |
| Flag of Norway | Original: Fredrik Meltzer Vector: Gutten på Hemsen | Public domain |
| Flag of Pakistan | User:Zscout370 | Public domain |
| Flag of Panama | Zscout370 et al. | Public domain |
| Flag of Papua New Guinea | User:Nightstallion | Public domain |
| Flag of Peru | David Benbennick | Public domain |
| Flag of Rwanda | Original: Unknown Vector: Zscout370 | Public domain |
| Flag of Samoa | Original: Malietoa Tanumafili II and Tupua Tamasese Meaʻole Vector: See the file history below for details. | Public domain |
| Flag of Senegal | Original upload by Nightstallion | Public domain |
| Flag of South Africa | Flag design by Frederick Brownell , image by Wikimedia Commons users | Public domain |
| Flag of South Korea | Original: Government of the Republic of Korea Vector: Great Brightstar and others | Public domain |
| Flag of Spain | RelShot 263 , Echando una mano ; earlier version was Pedro A. Gracia Fajardo, escudo de Manual de Imagen Institucional de la Administración General del Estado | Public domain |
| Flag of Sweden | Jon Harald Søby and others. | Public domain |
| Flag of Switzerland | Original: Unknown Vector: User:Marc Mongenet Credits: User:-xfi- User:Zscout370 | Public domain |
| Flag of Tanzania | Unknown | Public domain |
| Flag of Thailand | Zscout370 | Public domain |
| Flag of the Netherlands | Zscout370 | Public domain |
| Flag of the Philippines | See File history below for details. | Public domain |
| Flag of the United Kingdom | Original: Acts of Union 1800 Vector: Yaddah | Public domain |
| Flag of the United States | Uploaded by Dbenbenn ; edited by users such as Zscout370 , Jacobolus , Indolences , and Technion . | Public domain |
| Flag of Tonga | Uelingatoni Ngu Tupoumalohi | Public domain |
| Flag of Turkey | David Benbennick (original author) | Public domain |
| Flag of Ukraine | Government of Ukraine | Public domain |
| Flag of Uruguay | See File history below for details. | Public domain |
| Flag of Venezuela | Various, see File history below for details. | Public domain |
| FullMoon2010 | Gregory H. Revera | CC BY-SA 3.0 |
| Galata Tower (2) | Jaba1977 | CC BY-SA 4.0 |
| Gate of All Nations, Persepolis | Alborzagros | CC BY-SA 3.0 |
| Gharial male | Nireekshit | CC BY-SA 3.0 |
| Gila.monster.arp | Arpingstone | Public domain |
| Golden Eagle in flight - 5 | Tony Hisgett from Birmingham, UK | CC BY 2.0 |
| Golden Gate Bridge as seen from Battery East | Frank Schulenburg | CC BY-SA 4.0 |
| Grand Canyon South Rim at Sunset | Mgimelfarb | CC0 |
| Great Pyramid of Giza - Pyramid of Khufu | Douwe C. van der Zee | CC BY-SA 4.0 |
| Great Sphinx of Giza - 20080716a | Taken by the uploader, w:es:Usuario:Barcex | CC BY-SA 3.0 |
| Grosser Panda | J. Patrick Fischer | CC BY-SA 3.0 |
| Gutenberg press | International Printing Museum | CC0 |
| Ha Long Bay | Ondřej Žváček | CC BY 2.5 |
| Hadrian's Wall west of Housesteads 3 | Steven Fruitsmaak | Public domain |
| Hans Holbein the Younger - The Ambassadors - Google Art Project | Hans Holbein the Younger | Public domain |
| Harpia harpyja 001 800 | http://www.birdphotos.com | CC BY 3.0 |
| Himeji Castle The Keep Towers | by ja:User:Reggaeman | Public domain |
| Hiroshige, Sudden shower over Shin-Ōhashi bridge and Atake, 1857 | Utagawa Hiroshige | Public domain |
| Hooke-microscope | Robert Hooke | Public domain |
| Hovhannes Aivazovsky - The Ninth Wave - Google Art Project | Hovhannes Aivazovsky (1817 - 1900) - painter (Russian) Born in Rossiiskaya imperiya, Feodosia. Died in Rossiiskaya imperiya, Feodosia. Details on Google Art Project | Public domain |
| HST-SM4 | Ruffnax (Crew of STS-125) | Public domain |
| Humpback Whale underwater shot | Unknown | Public domain |
| Hydrurga leptonyx edit1 | Unknown | CC BY-SA 3.0 |
| Iguazu Décembre 2007 - Panorama 3 | Martin St-Amant ( S23678 ) | CC BY 3.0 |
| International Space Station after undocking of STS-132 | NASA/Crew of STS-132 | Public domain |
| Io highest resolution true color | NASA / JPL / University of Arizona | Public domain |
| Irbis4 | Irbis1983 | Public domain |
| Ishtar Gate at Berlin Museum | Rictor Norton | CC BY 2.0 |
| Jean-François Millet - Gleaners - Google Art Project 2 | Jean-François Millet | Public domain |
| Johannes Vermeer - Het melkmeisje - Google Art Project | Johannes Vermeer | Public domain |
| John Constable - The Hay Wain (1821) | John Constable | Public domain |
| Jupiter and its shrunken Great Red Spot | NASA, ESA, and A. Simon (Goddard Space Flight Center) | Public domain |
| JWST spacecraft model 2 | NASA | Public domain |
| Kamal-ud-din Bihzad - Construction of the fort of Kharnaq | Kamāl ud-Dīn Behzād | Public domain |
| Kilimanjaro from Amboseli | Sergey Pesterev | CC BY-SA 4.0 |
| Killerwhales jumping | Robert Pittman | Public domain |
| King-Cobra | Hari Prasad | CC BY-SA 2.0 |
| Kitagawa Utamaro - Toji san bijin (Three Beauties of the Present Day)From Bijin-ga (Pictures of Beautiful Women), published by Tsutaya Juzaburo - Google Art Project | Kitagawa Utamaro | Public domain |
| Komodo dragon with tongue | Mark Dumont | CC BY 2.0 |
| Kopfstudie eines Japanmakaken (Macaca fuscata) im Jigokudani Yaen Kōen, Japan | Frank Schulenburg | CC BY-SA 4.0 |
| Las Meninas, by Diego Velázquez, from Prado in Google Earth | Diego Velázquez | Public domain |
| Leopard africa | JanErkamp at English Wikipedia | CC BY-SA 3.0 |
| Lions-Gate-Mycenae | Andreas Trepte | CC BY-SA 2.5 |
| Lucanus cervus male top view | Q-bit array | CC BY-SA 4.0 |
| Lynx lynx poing | Bernard Landgraf ( User:Baerni ) | CC BY-SA 3.0 |
| M104 ngc4594 sombrero galaxy hi-res | NASA/ESA and The Hubble Heritage Team (STScI/AURA) | Public domain |
| Male gorilla in SF zoo | Brocken Inaglory | CC BY-SA 3.0 |
| Mandrill at san francisco zoo | ((brian)) from Sebastopol, CA, USA | CC BY 2.0 |
| Manet, Edouard - Young Flautist, or The Fifer, 1866 (2) | Édouard Manet | Public domain |
| Manta birostris-Thailand4 | jon hanson from london, UK | CC BY-SA 2.0 |
| Maquina vapor Watt ETSIIM | Nicolás Pérez | CC BY-SA 3.0 |
| Marina Bay Sands in the evening - 20101120 | Someformofhuman | CC BY-SA 3.0 |
| Matterhorn Riffelsee 2005-06-11 | Dirk Beyer | CC BY-SA 3.0 |
| Meisje met de parel | Johannes Vermeer | Public domain |
| Mercury in true color | NASA/Johns Hopkins University Applied Physics Laboratory/Arizona State University/Carnegie Institution of Washington | Public domain |
| Milford Sound (New Zealand) | Maros M r a z ( Maros ) | CC BY-SA 3.0 |
| Moai Rano raraku | Aurbina | Public domain |
| Mohenjo-daro | Saqib Qayyum | CC BY-SA 3.0 |
| Mona Lisa, by Leonardo da Vinci, from C2RMF retouched | Leonardo da Vinci | Public domain |
| Monarch In May | Kenneth Dwain Harrelson | CC BY-SA 3.0 |
| Monet - Impression, Sunrise | Claude Monet | Public domain |
| Montgolfière | Unknown author Unknown author | Public domain |
| Morsetaste | Hp.Baumeler | CC BY-SA 4.0 |
| Moscow Kremlin from Kamenny bridge | Минеева Ю. (Julmin) (retouched by Surendil ) | CC BY-SA 1.0 |
| NAMA Machine d'Anticythère 1 | No machine-readable author provided. Marsyas assumed (based on copyright claims). | CC BY 2.5 |
| NASA-Apollo8-Dec24-Earthrise | NASA/Bill Anders | Public domain |
| NASA-HS201427a-HubbleUltraDeepField2014-20140603 | NASA, ESA, H. Teplitz and M. Rafelski (IPAC/Caltech), A. Koekemoer (STScI), R. Windhorst (Arizona State University), and Z. Levay (STScI) | Public domain |
| Nazca colibri | BjarteSorensen | CC BY-SA 3.0 |
| Neptune - Voyager 2 (29347980845) flatten crop | NASA / JPL / Voyager-ISS / Aster Cowart | Public domain |
| Nike of Samothrake Louvre Ma2369 n4 | Marie-Lan Nguyen (2007) | Public domain |
| Nofretete Neues Museum | Philip Pikart | CC BY-SA 3.0 |
| North view of Charles Bridge from Mánesův most, Prague 20160808 1 | DXR | CC BY-SA 4.0 |
| Olmec Head No. 1 | Mesoamerican | CC BY-SA 4.0 |
| Orang Utan, Semenggok Forest Reserve, Sarawak, Borneo, Malaysia | Eleifert | CC BY-SA 3.0 |
| Ordinary bicycle01 | Agnieszka Kwiecień ( Nova ) | CC BY-SA 3.0 |
| OSIRIS Mars true color | ESA & MPS for OSIRIS Team MPS/UPD/LAM/IAA/RSSD/INTA/UPM/DASP/IDA, CC BY-SA 3.0 IGO | CC BY-SA 3.0 igo |
| Pan troglodytes - Karlsruhe Zoo | H. Zell | CC BY-SA 3.0 |
| Panther chameleon (Furcifer pardalis) male Nosy Be | Charles J. Sharp | CC BY-SA 4.0 |
| Perito Moreno Glacier Patagonia Argentina Luca Galuzzi 2005 | Luca Galuzzi ( Lucag ) | CC BY-SA 2.5 |
| Petronas Panorama II | Someformofhuman | CC BY-SA 4.0 |
| Pierre-Auguste Renoir, Le Moulin de la Galette | Pierre-Auguste Renoir | Public domain |
| Pieter Bruegel the Elder - Hunters in the Snow (Winter) - Google Art Project | Pieter Brueghel the Elder | Public domain |
| Pieter Bruegel the Elder - The Tower of Babel (Vienna) - Google Art Project - edited | Pieter Brueghel the Elder | Public domain |
| Pillars of creation 2014 HST WFC3-UVIS full-res denoised | NASA, ESA, and the Hubble Heritage Team (STScI/AURA) | Public domain |
| Plitvice Lakes National Park | 29cm from Hong Kong | CC BY-SA 2.0 |
| Pluto in True Color - High-Res | NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Alex Parker | Public domain |
| Polar Bear - Alaska (cropped) | Alan Wilson | CC BY-SA 3.0 |
| Pont du Gard BLS | Benh LIEU SONG ( Flickr ) | CC BY-SA 3.0 |
| Praying mantis india | Shiva shankar | CC BY-SA 2.0 |
| Proboscis Monkey in Borneo | David Dennis | CC BY-SA 2.0 |
| Queen Mother Pendant Mask- Iyoba MET DP231460 | Edo people | CC0 |
| Red Fuji southern wind clear morning | Katsushika Hokusai | Public domain |
| Reza Abbasi - Two Lovers (1630) | Reza Abbasi | Public domain |
| Ring-tailed lemur (Lemur catta) | Charles J. Sharp | CC BY-SA 4.0 |
| Rosetta Stone | Hans Hillewaert | CC BY-SA 4.0 |
| Salto Angel | Sankirumi | CC BY-SA 3.0 |
| Saturn during Equinox | NASA / JPL / Space Science Institute | Public domain |
| Schloss Neuschwanstein 2013 | Thomas Wolf , www.foto-tw.de | CC BY-SA 3.0 de |
| Sea otter cropped | Mike Baird from Morro Bay, USA | CC BY 2.0 |
| Shakuntala RRV | Raja Ravi Varma | Public domain |
| Sholes typewriter | George Iles | Public domain |
| Sloth Bear Washington DC | Asiir | Public domain |
| Space Shuttle Columbia launching | NASA | Public domain |
| Spectacled Bear - Houston Zoo | en:User:Cburnett | CC BY-SA 3.0 |
| Spinning jenny | Markus Schweiß | CC BY-SA 3.0 |
| Standing jaguar | USFWS | Public domain |
| Statue of Liberty 7 | Elcobbola | Public domain |
| Stephenson's Rocket | William M. Connolley ( talk · contribs ) | CC BY-SA 3.0 |
| Stonehenge2007 07 30 | garethwiscombe | CC BY 2.0 |
| Sugarloaf Mountain, Rio de Janeiro, Brazil | Wilfredor | CC0 |
| Sun bear | Kathy | CC BY 2.0 |
| Sydney Harbour Bridge from Circular Quay | JJ Harrison ( https://www.jjharrison.com.au/ ) | CC BY-SA 3.0 |
| Sydney Opera House - Dec 2008 | Diliff | CC BY-SA 3.0 |
| Table Mountain DanieVDM | Danie van der Merwe from Cape Town, South Africa | CC BY 2.0 |
| Taj Mahal (Edited) | Yann ; edited by Jim Carter | CC BY-SA 4.0 |
| Terracotta Army, View of Pit 1 | Jmhullot | CC BY 3.0 |
| The Court of Gayumars | Attributed to Sultan Muhammad | Public domain |
| The Fighting Temeraire, JMW Turner, National Gallery | J. M. W. Turner | Public domain |
| The Forbidden City - View from Coal Hill | Pixelflake | CC BY-SA 3.0 |
| The Great Wall of China at Jinshanling-edit | Severin.stalder | CC BY-SA 3.0 |
| The Night Watch - HD | Rembrandt | Public domain |
| The Parthenon in Athens | Steve Swayne | CC BY 2.0 |
| The Thinker, Rodin | AndrewHorne ( talk ) | Public domain |
| TheCheethcat | James Temple | CC BY 2.0 |
| Tokyo Tower 2023 | Akonnchiroll | CC BY-SA 4.0 |
| Toronto's CN Tower | Bill Wrigley | Public domain |
| Tour Eiffel Wikimedia Commons | Benh LIEU SONG | Public domain |
| Tower Bridge London Feb 2006 | Diliff | CC BY-SA 3.0 |
| Treasury petra crop | Al_Khazneh_Petra.jpg : Graham Racher from London, UK derivative work: MrPanyGoff | CC BY-SA 2.0 |
| Tsunami by hokusai 19th century | Katsushika Hokusai | Public domain |
| Tyto alba -British Wildlife Centre, Surrey, England-8a (1) | Peter Trimming | CC BY-SA 2.0 |
| Uluru, helicopter view, cropped | Corey Leopold | CC BY 2.0 |
| Uranus2 | NASA/JPL-Caltech | Public domain |
| Van Gogh - Starry Night - Google Art Project | Vincent van Gogh | Public domain |
| Venus-real color | NASA or Ricardo Nunes | Public domain |
| Vincent van Gogh - De slaapkamer - Google Art Project | Google Arts & Culture - KwF-AdF1REQl6w | Public domain |
| Vincent van Gogh - Self-Portrait - Google Art Project (454045) | Vincent van Gogh | Public domain |
| Voyager spacecraft | NASA/JPL | Public domain |
| Walking tiger female | Charles J. Sharp | CC BY-SA 4.0 |
| Whistlers Mother high res | James McNeill Whistler | Public domain |
| White shark | Pterantula (Terry Goss) at en.wikipedia | CC BY 2.5 |
| Wright Flyer | Jarek Tuszyński | CC BY 3.0 |
| Zeppelin | NASA Ames Resarch Center (NASA-ARC) | Public domain |