| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,377 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,548 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,160 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,939 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,589 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,697 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,450 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,711 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,409 |
| Name the English Monarchs | 0 | - | 4.91 | 505,694 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,172 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,552 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,297 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,771 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,439 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,888 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,836 |
| The Only European Country ... | 0 | - | 4.91 | 218,547 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,258 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,032 |
| Name that Greek Letter | 0 | - | 4.93 | 324,764 |
| History of Russia Quiz | 0 | - | 4.47 | 31,993 |
| The Trojan War | 0 | - | 4.83 | 39,945 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,768 |
| History of Italy | 0 | - | 4.55 | 32,118 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,520 |
| Roman Emperors | 0 | - | 4.95 | 120,985 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,792 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,401 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,058 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,892 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,873 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,212 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,351 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,896 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,389 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,654 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,333 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,218 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 112,988 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,008 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,677 |
| Slavic Countries | 0 | - | 4.96 | 112,236 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,429 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,247 |
| Counties of England | 0 | - | 4.97 | 801,729 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,549 |
| Countries Settled by Vikings | 0 | - | 4.92 | 121,983 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,235 |
| Ancient Greek Words | 0 | - | 4.93 | 112,303 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,243 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,607 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,378 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,303 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,322 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,339 |
| Monarchies of Europe | 0 | - | 4.90 | 98,718 |
| European Countries with One Border | 0 | - | 4.97 | 183,569 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,342 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,362 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,118 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,371 |
| History of Austria | 0 | - | 4.70 | 17,962 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,433 |
| Geography of the French Empire | 0 | - | 4.45 | 27,202 |
| The French Revolution | 0 | - | 4.47 | 24,124 |
| History of France | 0 | - | 4.61 | 57,509 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,640 |
| States of Germany | 0 | - | 4.95 | 154,152 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,549 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,585 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,079 |
| Regions of Italy | 0 | - | 4.92 | 76,793 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,442 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,696 |
| The Vikings! | 0 | - | 4.46 | 28,397 |
| The Portuguese Empire | 0 | - | 4.58 | 12,096 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,121 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,656 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,419 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,442 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,151 |
| Geography of the British Empire | 0 | - | 4.48 | 39,826 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,816 |
| Champions League Winners | 0 | - | 4.92 | 1,014,193 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,699 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,649 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,321 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,589 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,560 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,025 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,695 |
| Russia Country Quiz | 0 | - | 4.83 | 115,200 |
| Countries That Border Russia | 0 | - | 4.98 | 464,104 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,664 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,522 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,890 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,618 |
| Departments of France | 0 | - | 4.93 | 54,928 |
| Countries Bordering France | 0 | - | 4.83 | 404,535 |
| Germany Country Quiz | 0 | - | 4.82 | 158,655 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,953 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,493 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,089 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,914 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,717 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,281 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,368 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,685 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,547 |
| England or Wales? | 0 | - | 4.94 | 45,914 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,774 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,381 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,997 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,709 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,406 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,588 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,195 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,017 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,934 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,527 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,589 |
| History of The Netherlands | 0 | - | 4.46 | 17,536 |
| Medieval English History | 0 | - | 4.53 | 43,627 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,720,825 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,623 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,313 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,305 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,659 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,836 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,879 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,866 |
| Countries that Border Poland | 0 | - | 4.99 | 173,022 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,188 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,464 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,932 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,013 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,991 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,966 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,028 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,877 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,097 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,413 |
| French History Multiple Choice | 0 | - | 4.55 | 33,196 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,274 |
| History of Germany | 0 | - | 4.39 | 52,957 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,204 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,806 |
| Counties of Ireland | 0 | - | 4.92 | 196,939 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,190 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,166 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,196 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,173 |
| Roman Names for Places | 0 | - | 4.62 | 58,638 |
| Byzantine History | 0 | - | 4.91 | 28,999 |
| Byzantine Emperors | 0 | - | 4.93 | 14,530 |
| History of Spain | 0 | - | 4.23 | 21,149 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,292 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,908 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,103 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,813 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,922 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,232 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,902 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,284 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,059 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,694 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,987 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,220 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 404,109 |
| Malta Country Quiz | 0 | - | 4.81 | 31,211 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.81 | 55,118 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,663 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,705 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,128 |
| Russian History A-Z | 0 | - | 4.35 | 32,140 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,455 |
| Russian Inventions | 0 | - | 4.39 | 13,009 |
| French Inventions | 0 | - | 4.10 | 13,919 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,622 |
| History of Paris | 0 | - | 4.24 | 13,671 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,169 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,477 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,221 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,155 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,075 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,021 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,767 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,259 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,985 |
| Embarrassing Chapters in British History | 0 | - | 4.30 | 32,357 |
| British History A-Z #1 | 0 | - | 4.45 | 47,166 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,029 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,970 |
| History of Scotland | 0 | - | 4.51 | 21,162 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,417 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,128 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,693 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,223 |
| Australian Capitals | 0 | - | 4.92 | 62,812 |
