| The Trojan War | 0 | - | 4.83 | 39,729 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,851 |
| Name the English Monarchs | 0 | - | 4.91 | 502,687 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,124 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,865 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,283 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,011 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,536 |
| Roman Emperors | 0 | - | 4.95 | 120,054 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,996 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,350 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 81,880 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,683 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,015 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,892 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,192 |
| Countries Bordering France | 0 | - | 4.83 | 402,555 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,422 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,670 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,494 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,690 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,758 |
| Departments of France | 0 | - | 4.93 | 54,115 |
| Germany Country Quiz | 0 | - | 4.83 | 157,859 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,342 |
| Italy Country Quiz | 0 | - | 4.80 | 123,410 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,388 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,056 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,548 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,934 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,650 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,623 |
| England or Wales? | 0 | - | 4.94 | 45,690 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,218 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,770 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,321 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,872 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,180 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,714 |
| Counties of Ireland | 0 | - | 4.92 | 195,290 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,867 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,053 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,463 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,995 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,742 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,657 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,842 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,441 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,997 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,913 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,456 |
| Name that Greek Letter | 0 | - | 4.93 | 323,460 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,332 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,493 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,921 |
| Finland Country Quiz | 0 | - | 4.50 | 59,681 |
| Norway Country Quiz | 0 | - | 4.44 | 77,344 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,162 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,581 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,345 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,943 |
| Medieval English History | 0 | - | 4.53 | 43,509 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,040 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,483 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,260 |
| The Only European Country ... | 0 | - | 4.91 | 216,643 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,143 |
| History of Russia Quiz | 0 | - | 4.47 | 31,918 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,661 |
| History of Italy | 0 | - | 4.55 | 31,975 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,747 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,934 |
| Roman Names for Places | 0 | - | 4.62 | 58,290 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,661 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,375 |
| Countries that Beat Iceland | 0 | - | 4.82 | 42,866 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,237 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,866 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,793 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,673 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,146 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,962 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,215 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,744 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,673 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,212 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,721 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,153 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,523 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,881 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,293 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,194 |
| Slavic Countries | 0 | - | 4.96 | 111,665 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,860 |
| Ancient Greek Words | 0 | - | 4.93 | 111,607 |
| Counties of England | 0 | - | 4.97 | 796,808 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,006 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,957 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,200 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,145 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,132 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,136 |
| Sweden Country Quiz | 0 | - | 4.35 | 68,213 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,559 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,263 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,607 |
| History of Scotland | 0 | - | 4.51 | 21,093 |
| Champions League Winners | 0 | - | 4.92 | 1,006,792 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,863 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,532 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,323 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,767 |
| Monarchies of Europe | 0 | - | 4.90 | 98,153 |
| European Countries with One Border | 0 | - | 4.97 | 182,784 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,581 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,595 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,185 |
| Countries That Border Russia | 0 | - | 4.98 | 461,751 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,904 |
| History of Austria | 0 | - | 4.70 | 17,863 |
| Austria Country Quiz | 0 | - | 4.57 | 59,739 |
| Belgium Country Quiz | 0 | - | 4.73 | 71,803 |
| France Country Quiz | 0 | - | 4.70 | 134,981 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,441 |
| Geography of the French Empire | 0 | - | 4.45 | 27,060 |
| The French Revolution | 0 | - | 4.47 | 23,935 |
| Kings of France Quiz | 0 | - | 4.20 | 32,746 |
| History of France | 0 | - | 4.59 | 56,981 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,823 |
| States of Germany | 0 | - | 4.96 | 152,597 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,044 |
| Greece Country Quiz | 0 | - | 4.74 | 66,259 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,501 |
| Regions of Italy | 0 | - | 4.92 | 75,883 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,183 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,749 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,505 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,531 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,170 |
| The Vikings! | 0 | - | 4.46 | 28,343 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,130 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,905 |
| The Portuguese Empire | 0 | - | 4.58 | 12,064 |
| Spain Country Quiz | 0 | - | 4.44 | 128,538 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,952 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,372 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,210 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,003 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,040 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,731 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,351 |
| English Royal Consorts | 0 | - | 4.38 | 37,354 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,483 |
| Geography of the British Empire | 0 | - | 4.48 | 39,674 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,700 |
| Counties of Wales | 0 | - | 4.63 | 39,300 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,868 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,121 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,014 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,273 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,834 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,140 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,031 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,721 |
| Russia Country Quiz | 0 | - | 4.85 | 114,495 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,344 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,344 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,798 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,971 |
| History of Ireland | 0 | - | 4.39 | 31,182 |
| Byzantine History | 0 | - | 4.91 | 28,867 |
| Byzantine Emperors | 0 | - | 4.92 | 14,122 |
| History of The Netherlands | 0 | - | 4.46 | 17,436 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,994 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,434 |
| UK Immigration by Country | 0 | - | 4.94 | 140,907 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,803 |
| British Monopoly Board | 0 | - | 4.52 | 41,168 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,353 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,698,815 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,801 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,214 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,112 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,656 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,386 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,978 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,454 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,061 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,267 |
| Countries that Border Poland | 0 | - | 4.99 | 172,281 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,853 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,794 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,858 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,231 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,875 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,807 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,400 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,778 |
| 20 Questions About France | 0 | - | 4.11 | 32,410 |
| Countries that Beat France | 0 | - | 4.49 | 75,850 |
