| Roman Emperors | 0 | - | 4.95 | 119,625 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,915 |
| Name that Greek Letter | 0 | - | 4.93 | 323,028 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,683 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,846 |
| Roman Names for Places | 0 | - | 4.62 | 58,161 |
| The Trojan War | 0 | - | 4.83 | 39,638 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,497 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,455 |
| Name the English Monarchs | 0 | - | 4.91 | 501,295 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,167 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,053 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,735 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,669 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,988 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,983 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,438 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,599 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,291 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,862 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,424 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,235 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,849 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,093 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,244 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,679 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,571 |
| The Life of Alexander the Great | 0 | - | 4.50 | 18,474 |
| Regions of Italy | 0 | - | 4.92 | 75,503 |
| History of Italy | 0 | - | 4.55 | 31,930 |
| Byzantine History | 0 | - | 4.91 | 28,749 |
| Countries Bordering France | 0 | - | 4.83 | 401,790 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,519 |
| Italy Country Quiz | 0 | - | 4.82 | 123,152 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,070 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,511 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,732 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,558 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,370 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,380 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,704 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,167 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,776 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,076 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,894 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,000 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,380 |
| Counties of Ireland | 0 | - | 4.92 | 194,551 |
| Roman History by Picture | 0 | - | 4.46 | 26,433 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,893 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,556 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,064 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,062 |
| British History A-Z #1 | 0 | - | 4.45 | 46,384 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,570 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,451 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,209 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,660 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,360 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,032 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,074 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,890 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,329 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,361 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,350 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,124 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,769 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,342 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,136 |
| English Royal Consorts | 0 | - | 4.37 | 37,308 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,125 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,874 |
| German History A-Z | 0 | - | 4.49 | 24,566 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,928 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,874 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,644 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,112 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,092 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,923 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,502 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,454 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,350 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,846 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,764 |
| The Only European Country ... | 0 | - | 4.91 | 215,897 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,704 |
| History of Russia Quiz | 0 | - | 4.49 | 31,878 |
| Ancient Greek Words | 0 | - | 4.93 | 111,302 |
| Italian History A-Z | 0 | - | 4.21 | 17,662 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,562 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,606 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,156 |
| Counties of England | 0 | - | 4.97 | 794,502 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,783 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,800 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,034 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,389 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,933 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,079 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,952 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,904 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,458 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,961 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,689 |
| Slavic Countries | 0 | - | 4.96 | 111,452 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,491 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,112 |
| Geography of Rome | 0 | - | 4.51 | 16,647 |
| Rome City Trivia | 0 | - | 4.49 | 20,647 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,463 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,708 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,482 |
| Champions League Winners | 0 | - | 4.92 | 1,003,457 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,578 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,842 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,747 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,645 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,205 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,867 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,470 |
| Monarchies of Europe | 0 | - | 4.90 | 97,920 |
| European Countries with One Border | 0 | - | 4.97 | 182,465 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,275 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,497 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,227 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,867 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,593 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,793 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,282 |
| Russia Country Quiz | 0 | - | 4.85 | 114,242 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,204 |
| Countries That Border Russia | 0 | - | 4.98 | 461,014 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,216 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,697 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,281 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,089 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,396 |
| Departments of France | 0 | - | 4.93 | 53,720 |
| Geography of the French Empire | 0 | - | 4.45 | 27,019 |
| The French Revolution | 0 | - | 4.46 | 23,897 |
| History of France | 0 | - | 4.59 | 56,799 |
| French History A-Z | 0 | - | 4.23 | 24,535 |
| Germany Country Quiz | 0 | - | 4.82 | 157,523 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,499 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,845 |
| States of Germany | 0 | - | 4.96 | 151,772 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,460 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,852 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,787 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,084 |
| Serie A Champions | 0 | - | 4.29 | 58,130 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,770 |
| The Vikings! | 0 | - | 4.46 | 28,317 |
| The Portuguese Empire | 0 | - | 4.58 | 12,045 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,638 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,595 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,331 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,969 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,515 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,176 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,303 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,276 |
| Geography of the British Empire | 0 | - | 4.48 | 39,627 |
| Animals in British History | 0 | - | 4.44 | 25,970 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,413 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,655 |
| England or Wales? | 0 | - | 4.94 | 45,589 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,682 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,686,906 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,470 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,028 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,266 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,331 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,724 |
| Countries that Border Poland | 0 | - | 4.99 | 172,022 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,700 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,121 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,074 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,225 |
| Countries that Beat France | 0 | - | 4.49 | 75,597 |
| France True or False? | 0 | - | 4.43 | 39,898 |
| French History Multiple Choice | 0 | - | 4.55 | 32,995 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,753 |
| Countries that Beat Greece | 0 | - | 4.53 | 48,848 |
| Roman to Greek God | 0 | - | 4.52 | 122,637 |
| Famous Italians by Picture | 0 | - | 4.05 | 21,916 |
| History of The Netherlands | 0 | - | 4.46 | 17,403 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,286 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,770 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,304 |
| Most-Visited Countries by Swedes | 0 | - | 4.64 | 53,050 |
| Finland Country Quiz | 0 | - | 4.50 | 59,506 |
| Norway Country Quiz | 0 | - | 4.44 | 77,151 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,064 |
| Spanish History A-Z | 0 | - | 4.37 | 19,259 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,324 |
| Arthurian Legend | 0 | - | 4.33 | 25,094 |
| British Monopoly Board | 0 | - | 4.52 | 41,136 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,875 |
