| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,301 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,229 |
| Slavic Countries | 0 | - | 4.96 | 110,889 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,579 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,001 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,461 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,468 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,155 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,053 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,235 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,541 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,163 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,344 |
| Name the English Monarchs | 0 | - | 4.92 | 498,126 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,466 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,400 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,158 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,544 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,082 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,402 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,643 |
| The Only European Country ... | 0 | - | 4.91 | 213,954 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,623 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,126 |
| Name that Greek Letter | 0 | - | 4.94 | 321,752 |
| The Trojan War | 0 | - | 4.83 | 39,447 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,605 |
| History of Italy | 0 | - | 4.55 | 31,828 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,070 |
| Roman Emperors | 0 | - | 4.95 | 118,532 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,989 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,496 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,497 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,421 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,156 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,737 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,330 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,429 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,496 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,916 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,027 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,367 |
| Counties of England | 0 | - | 4.97 | 789,515 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,163 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,469 |
| Ancient Greek Words | 0 | - | 4.92 | 110,731 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,354 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,064 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,436 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,924 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,855 |
| Monarchies of Europe | 0 | - | 4.90 | 97,354 |
| European Countries with One Border | 0 | - | 4.97 | 181,675 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,575 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,294 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,096 |
| Geography of Russia | 0 | - | 4.57 | 21,430 |
| History of Austria | 0 | - | 4.70 | 17,759 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,235 |
| Geography of the French Empire | 0 | - | 4.48 | 26,941 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| History of France | 0 | - | 4.59 | 56,105 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,758 |
| States of Germany | 0 | - | 4.96 | 150,172 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,388 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,058 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,512 |
| Regions of Italy | 0 | - | 4.92 | 74,773 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,640 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,852 |
| The Vikings! | 0 | - | 4.46 | 28,249 |
| The Portuguese Empire | 0 | - | 4.54 | 11,995 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,415 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,228 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,024 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,193 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,825 |
| Geography of the British Empire | 0 | - | 4.48 | 39,487 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,509 |
| Champions League Winners | 0 | - | 4.92 | 996,805 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,944 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,280 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,144 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,640 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,318 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,246 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,944 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,301 |
| Russia Country Quiz | 0 | - | 4.85 | 113,673 |
| Countries That Border Russia | 0 | - | 4.98 | 459,010 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,872 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,051 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,262 |
| Departments of France | 0 | - | 4.93 | 52,866 |
| Countries Bordering France | 0 | - | 4.83 | 399,492 |
| Germany Country Quiz | 0 | - | 4.82 | 156,616 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,192 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,149 |
| Italy Country Quiz | 0 | - | 4.82 | 122,268 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,444 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,121 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,378 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,685 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,113 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,700 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,354 |
| England or Wales? | 0 | - | 4.94 | 45,340 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,552 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,478 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,604 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,120 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,798 |
| Slavic Languages | 0 | - | 4.67 | 53,998 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,783 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,775 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,036 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,978 |
| History of The Netherlands | 0 | - | 4.46 | 17,320 |
| Medieval English History | 0 | - | 4.53 | 43,330 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,656,427 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,321 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,097 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,800 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,871 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,858 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,006 |
| Random Point on Land to European Country | 0 | - | 4.93 | 76,130 |
| Countries that Border Poland | 0 | - | 4.99 | 171,403 |
| Embarrassing Chapters in Russian History | 0 | - | 3.73 | 20,238 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,396 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,578 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,720 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,630 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,549 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,777 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,527 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,415 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,808 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,553 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,825 |
| French History Multiple Choice | 0 | - | 4.55 | 32,882 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,418 |
| History of Germany | 0 | - | 4.39 | 52,624 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,939 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,445 |
| Counties of Ireland | 0 | - | 4.92 | 193,154 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,473 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,372 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,545 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,683 |
| Roman Names for Places | 0 | - | 4.62 | 57,891 |
| Byzantine History | 0 | - | 4.91 | 28,629 |
| History of Spain | 0 | - | 4.29 | 21,006 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,035 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,368 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,699 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,692 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,076 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,310 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,968 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,841 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,825 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,778 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,793 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,373 |
| Malta Country Quiz | 0 | - | 4.81 | 30,839 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,603 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,968 |
| European Cities Beginning with B - Click Map | 0 | - | 4.75 | 77,402 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,172 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,655 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,579 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,931 |
| Russian Inventions | 0 | - | 4.39 | 12,891 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,622 |
| History of Paris | 0 | - | 4.24 | 13,616 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,420 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,486 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,989 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,045 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,898 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,881 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,700 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,488 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,871 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,129 |
| British History A-Z #1 | 0 | - | 4.45 | 45,939 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,334 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,135 |
| History of Scotland | 0 | - | 4.51 | 21,008 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,156 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,077 |
| Australian Capitals | 0 | - | 4.92 | 62,595 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,601 |
| Official European Union Languages | 0 | - | 4.97 | 236,889 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,724 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,424 |
