| The Trojan War | 0 | - | 4.83 | 39,567 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,165 |
| Name the English Monarchs | 0 | - | 4.92 | 500,119 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,684 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,346 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,848 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,743 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,287 |
| Roman Emperors | 0 | - | 4.95 | 119,241 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,074 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,537 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,863 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,957 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,490 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,379 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,911 |
| Countries Bordering France | 0 | - | 4.83 | 401,126 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,006 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,251 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,294 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,703 |
| Departments of France | 0 | - | 4.93 | 53,300 |
| Germany Country Quiz | 0 | - | 4.82 | 157,183 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,559 |
| Italy Country Quiz | 0 | - | 4.82 | 122,677 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,824 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,460 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,438 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,424 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,045 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,863 |
| England or Wales? | 0 | - | 4.94 | 45,489 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,559 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,633 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,026 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,698 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,974 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,409 |
| Counties of Ireland | 0 | - | 4.92 | 194,036 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,634 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,899 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 90,247 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,228 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,487 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,054 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,006 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,534 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,817 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,870 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,842 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,624 |
| Name that Greek Letter | 0 | - | 4.93 | 322,546 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,147 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,124 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,650 |
| Finland Country Quiz | 0 | - | 4.50 | 59,363 |
| Norway Country Quiz | 0 | - | 4.44 | 76,979 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,992 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,143 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,951 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,660 |
| Medieval English History | 0 | - | 4.53 | 43,403 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,933 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,227 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,311 |
| The Only European Country ... | 0 | - | 4.91 | 215,142 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,321 |
| History of Russia Quiz | 0 | - | 4.49 | 31,844 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,539 |
| History of Italy | 0 | - | 4.55 | 31,897 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,628 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,788 |
| Roman Names for Places | 0 | - | 4.62 | 58,056 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,567 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,226 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,535 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,092 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,716 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,685 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,468 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,049 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,895 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,630 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,486 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,155 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,700 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,436 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,759 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,305 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,467 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,739 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,524 |
| Slavic Countries | 0 | - | 4.96 | 111,257 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,419 |
| Ancient Greek Words | 0 | - | 4.93 | 111,099 |
| Counties of England | 0 | - | 4.97 | 792,558 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,500 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,828 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,157 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,081 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,145 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,835 |
| Sweden Country Quiz | 0 | - | 4.35 | 67,951 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,283 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,184 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,343 |
| History of Scotland | 0 | - | 4.51 | 21,046 |
| Champions League Winners | 0 | - | 4.92 | 1,000,689 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,619 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,409 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,917 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,499 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,235 |
| Monarchies of Europe | 0 | - | 4.90 | 97,700 |
| European Countries with One Border | 0 | - | 4.97 | 182,118 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,983 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,686 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,309 |
| Countries That Border Russia | 0 | - | 4.98 | 460,338 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,535 |
| History of Austria | 0 | - | 4.70 | 17,800 |
| Austria Country Quiz | 0 | - | 4.57 | 59,533 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,489 |
| France Country Quiz | 0 | - | 4.70 | 134,491 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,774 |
| Geography of the French Empire | 0 | - | 4.45 | 26,999 |
| The French Revolution | 0 | - | 4.46 | 23,862 |
| Kings of France Quiz | 0 | - | 4.20 | 32,630 |
| History of France | 0 | - | 4.59 | 56,627 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,146 |
| States of Germany | 0 | - | 4.96 | 151,079 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,496 |
| Greece Country Quiz | 0 | - | 4.74 | 65,986 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,454 |
| Regions of Italy | 0 | - | 4.92 | 75,206 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,136 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,612 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,363 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,229 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 48,023 |
| The Vikings! | 0 | - | 4.46 | 28,286 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,873 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,590 |
| The Portuguese Empire | 0 | - | 4.58 | 12,027 |
| Spain Country Quiz | 0 | - | 4.45 | 128,045 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,175 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,132 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,727 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,346 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,437 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,628 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,264 |
| English Royal Consorts | 0 | - | 4.37 | 37,272 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,095 |
| Geography of the British Empire | 0 | - | 4.48 | 39,584 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,618 |
| Counties of Wales | 0 | - | 4.63 | 39,066 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,311 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,638 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,491 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,776 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,721 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,079 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,712 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,907 |
| Russia Country Quiz | 0 | - | 4.85 | 114,043 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,092 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,190 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,721 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,851 |
| History of Ireland | 0 | - | 4.39 | 31,008 |
| Byzantine History | 0 | - | 4.91 | 28,703 |
| History of The Netherlands | 0 | - | 4.46 | 17,360 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,431 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,230 |
| UK Immigration by Country | 0 | - | 4.94 | 140,351 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,963 |
| British Monopoly Board | 0 | - | 4.52 | 41,096 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,246 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,674,005 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,787 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,154 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,932 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,095 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,836 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,128 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,479 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,992 |
| Countries that Border Poland | 0 | - | 4.99 | 171,782 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,566 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,249 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,540 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,930 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,724 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,668 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,062 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,185 |
| 20 Questions About France | 0 | - | 4.11 | 32,363 |
