| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,462 |
| Name that Greek Letter | 0 | - | 4.93 | 322,492 |
| The Trojan War | 0 | - | 4.83 | 39,552 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,126 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,028 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,269 |
| Roman Emperors | 0 | - | 4.95 | 119,202 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,234 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,532 |
| Name the English Monarchs | 0 | - | 4.92 | 499,987 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,452 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,865 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,836 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,621 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,780 |
| Roman Names for Places | 0 | - | 4.62 | 58,042 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,311 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,734 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,292 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,501 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,833 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,930 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,472 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,349 |
| Ancient Greek Words | 0 | - | 4.93 | 111,082 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,134 |
| Countries Bordering France | 0 | - | 4.83 | 401,046 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,959 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,015 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,681 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,458 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,963 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,288 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,627 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,016 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,690 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,970 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,822 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,333 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,074 |
| Counties of Ireland | 0 | - | 4.92 | 193,962 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,627 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,863 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,191 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,815 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,425 |
| British History A-Z #1 | 0 | - | 4.45 | 46,289 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,476 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,330 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,030 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,995 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,477 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,856 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,793 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,733 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,795 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,118 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,131 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,941 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,646 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,107 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,827 |
| English Royal Consorts | 0 | - | 4.37 | 37,265 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,952 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,157 |
| German History A-Z | 0 | - | 4.49 | 24,509 |
| Countries that Beat Greece | 0 | - | 4.53 | 48,754 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,134 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,523 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,079 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,038 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,892 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,914 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,871 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,158 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,244 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,261 |
| The Only European Country ... | 0 | - | 4.91 | 215,043 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,264 |
| History of Russia Quiz | 0 | - | 4.49 | 31,839 |
| History of Italy | 0 | - | 4.55 | 31,893 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,557 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Counties of England | 0 | - | 4.97 | 792,310 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,707 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,751 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,385 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,117 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,678 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,344 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,743 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,226 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,356 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,711 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,510 |
| Slavic Countries | 0 | - | 4.96 | 111,219 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,124 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,297 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,068 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,826 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,666 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,460 |
| Champions League Winners | 0 | - | 4.92 | 1,000,461 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,290 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,607 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,609 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,459 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,323 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,887 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,462 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,218 |
| Monarchies of Europe | 0 | - | 4.90 | 97,677 |
| European Countries with One Border | 0 | - | 4.97 | 182,084 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,952 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,699 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,676 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,668 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,033 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,589 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,858 |
| Russia Country Quiz | 0 | - | 4.85 | 114,019 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,214 |
| Countries That Border Russia | 0 | - | 4.98 | 460,257 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,076 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,517 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,184 |
| History of Austria | 0 | - | 4.70 | 17,795 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,722 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,677 |
| Departments of France | 0 | - | 4.93 | 53,265 |
| Geography of the French Empire | 0 | - | 4.45 | 26,997 |
| The French Revolution | 0 | - | 4.46 | 23,857 |
| History of France | 0 | - | 4.59 | 56,589 |
| French History A-Z | 0 | - | 4.22 | 24,372 |
| Germany Country Quiz | 0 | - | 4.82 | 157,141 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,119 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,528 |
| States of Germany | 0 | - | 4.96 | 151,020 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,342 |
| Greece Country Quiz | 0 | - | 4.74 | 65,966 |
| Regions of Italy | 0 | - | 4.92 | 75,162 |
| Italy Country Quiz | 0 | - | 4.82 | 122,642 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,789 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,428 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,427 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,320 |
| The Vikings! | 0 | - | 4.46 | 28,283 |
| The Portuguese Empire | 0 | - | 4.58 | 12,027 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,379 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,140 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,013 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,711 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,319 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,811 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,261 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,080 |
| Geography of the British Empire | 0 | - | 4.48 | 39,577 |
| Animals in British History | 0 | - | 4.44 | 25,929 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,386 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,614 |
| England or Wales? | 0 | - | 4.94 | 45,476 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,201 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,673,052 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,743 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,923 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,079 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,102 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,441 |
| Countries that Border Poland | 0 | - | 4.99 | 171,757 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,550 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,481 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,922 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,049 |
| Countries that Beat France | 0 | - | 4.49 | 75,433 |
| France True or False? | 0 | - | 4.43 | 39,857 |
| French History Multiple Choice | 0 | - | 4.55 | 32,940 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,716 |
| Roman to Greek God | 0 | - | 4.52 | 122,476 |
| Italian History A-Z | 0 | - | 4.21 | 17,623 |
| Roman History by Picture | 0 | - | 4.46 | 26,392 |
| Byzantine History | 0 | - | 4.91 | 28,697 |
| History of The Netherlands | 0 | - | 4.46 | 17,354 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,236 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,633 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,222 |
| Most-Visited Countries by Swedes | 0 | - | 4.64 | 53,007 |
| Finland Country Quiz | 0 | - | 4.50 | 59,347 |
| Norway Country Quiz | 0 | - | 4.44 | 76,957 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,975 |
| Spanish History A-Z | 0 | - | 4.37 | 19,222 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,226 |
| Arthurian Legend | 0 | - | 4.33 | 25,075 |
| British Monopoly Board | 0 | - | 4.52 | 41,096 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,629 |
| British Geography Quiz #1 | 0 | - | 4.51 | 48,244 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,782 |
| Medieval English History | 0 | - | 4.53 | 43,395 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,510 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,152 |
