| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,413 |
| Roman Emperors | 0 | - | 4.95 | 119,646 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,049 |
| Name that Greek Letter | 0 | - | 4.93 | 323,076 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,693 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,858 |
| Roman Names for Places | 0 | - | 4.62 | 58,176 |
| The Trojan War | 0 | - | 4.83 | 39,643 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,526 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,512 |
| Name the English Monarchs | 0 | - | 4.91 | 501,432 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,167 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,056 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,747 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,693 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,210 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,995 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,459 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,605 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,306 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,871 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,520 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,245 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,873 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,111 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,273 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,695 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,596 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,478 |
| Regions of Italy | 0 | - | 4.92 | 75,536 |
| History of Italy | 0 | - | 4.55 | 31,935 |
| Byzantine History | 0 | - | 4.91 | 28,754 |
| Countries Bordering France | 0 | - | 4.83 | 401,859 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,584 |
| Italy Country Quiz | 0 | - | 4.82 | 123,180 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,117 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,515 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,740 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,572 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,171 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,388 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,715 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,183 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,786 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,086 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,899 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,066 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,386 |
| Counties of Ireland | 0 | - | 4.92 | 194,613 |
| Roman History by Picture | 0 | - | 4.46 | 26,435 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,601 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,087 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,151 |
| British History A-Z #1 | 0 | - | 4.45 | 46,398 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,585 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,467 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,226 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,682 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,473 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,052 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,096 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,903 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,329 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,419 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,366 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,141 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,781 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,362 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,164 |
| English Royal Consorts | 0 | - | 4.37 | 37,322 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,245 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,925 |
| German History A-Z | 0 | - | 4.49 | 24,571 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,936 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,875 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,654 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,123 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,101 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,924 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,561 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,516 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,805 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,068 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,813 |
| The Only European Country ... | 0 | - | 4.91 | 215,955 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,759 |
| History of Russia Quiz | 0 | - | 4.49 | 31,879 |
| Ancient Greek Words | 0 | - | 4.93 | 111,340 |
| Italian History A-Z | 0 | - | 4.21 | 17,669 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,569 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,611 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,162 |
| Counties of England | 0 | - | 4.97 | 794,727 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,793 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,805 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,143 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,413 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,958 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,148 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,976 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,957 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,572 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,993 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,714 |
| Slavic Countries | 0 | - | 4.96 | 111,486 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,628 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,116 |
| Geography of Rome | 0 | - | 4.51 | 16,649 |
| Rome City Trivia | 0 | - | 4.49 | 20,649 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,521 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,717 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,488 |
| Champions League Winners | 0 | - | 4.92 | 1,003,647 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,602 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,871 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,776 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,659 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,238 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,890 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,491 |
| Monarchies of Europe | 0 | - | 4.90 | 97,944 |
| European Countries with One Border | 0 | - | 4.97 | 182,500 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,307 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,579 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,270 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,927 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,657 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,899 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,318 |
| Russia Country Quiz | 0 | - | 4.85 | 114,270 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,371 |
| Countries That Border Russia | 0 | - | 4.98 | 461,075 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,234 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,720 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,289 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,139 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,442 |
| Departments of France | 0 | - | 4.93 | 53,772 |
| Geography of the French Empire | 0 | - | 4.45 | 27,024 |
| The French Revolution | 0 | - | 4.46 | 23,901 |
| History of France | 0 | - | 4.59 | 56,821 |
| French History A-Z | 0 | - | 4.23 | 24,551 |
| Germany Country Quiz | 0 | - | 4.82 | 157,565 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,536 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,858 |
| States of Germany | 0 | - | 4.96 | 151,881 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,462 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,876 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,811 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,086 |
| Serie A Champions | 0 | - | 4.29 | 58,141 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,850 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| The Portuguese Empire | 0 | - | 4.58 | 12,046 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,651 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,622 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,362 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,995 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,546 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,215 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,306 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,294 |
| Geography of the British Empire | 0 | - | 4.48 | 39,629 |
| Animals in British History | 0 | - | 4.44 | 25,972 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,417 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,659 |
| England or Wales? | 0 | - | 4.94 | 45,595 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,725 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,687,683 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,492 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,040 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,270 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,342 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,762 |
| Countries that Border Poland | 0 | - | 4.99 | 172,046 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,715 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,202 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,087 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,240 |
| Countries that Beat France | 0 | - | 4.49 | 75,608 |
| France True or False? | 0 | - | 4.43 | 39,904 |
| French History Multiple Choice | 0 | - | 4.55 | 33,001 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,757 |
| Countries that Beat Greece | 0 | - | 4.53 | 48,864 |
| Roman to Greek God | 0 | - | 4.52 | 122,648 |
| Famous Italians by Picture | 0 | - | 4.05 | 21,918 |
| History of The Netherlands | 0 | - | 4.46 | 17,406 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,298 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,788 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,306 |
| Most-Visited Countries by Swedes | 0 | - | 4.64 | 53,052 |
| Finland Country Quiz | 0 | - | 4.50 | 59,527 |
| Norway Country Quiz | 0 | - | 4.44 | 77,168 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,080 |
| Spanish History A-Z | 0 | - | 4.37 | 19,266 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,330 |
| Arthurian Legend | 0 | - | 4.33 | 25,094 |
| British Monopoly Board | 0 | - | 4.52 | 41,137 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,896 |
