| The Trojan War | 0 | - | 4.83 | 39,724 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,836 |
| Name the English Monarchs | 0 | - | 4.91 | 502,616 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,112 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,854 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,277 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,007 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,525 |
| Roman Emperors | 0 | - | 4.95 | 120,038 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,963 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,237 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 81,769 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,666 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,996 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,878 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,800 |
| Countries Bordering France | 0 | - | 4.83 | 402,529 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,393 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,660 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,490 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,683 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,742 |
| Departments of France | 0 | - | 4.93 | 54,096 |
| Germany Country Quiz | 0 | - | 4.83 | 157,840 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,319 |
| Italy Country Quiz | 0 | - | 4.80 | 123,397 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,361 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,041 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,545 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,923 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,644 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,601 |
| England or Wales? | 0 | - | 4.94 | 45,686 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,179 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,769 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,315 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,870 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,177 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,676 |
| Counties of Ireland | 0 | - | 4.92 | 195,260 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,862 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,035 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,458 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,975 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,686 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,651 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,837 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,424 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,993 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,913 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,393 |
| Name that Greek Letter | 0 | - | 4.93 | 323,443 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,327 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,483 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,911 |
| Finland Country Quiz | 0 | - | 4.50 | 59,675 |
| Norway Country Quiz | 0 | - | 4.44 | 77,335 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,161 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,576 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,340 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,938 |
| Medieval English History | 0 | - | 4.53 | 43,507 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,018 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,452 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,231 |
| The Only European Country ... | 0 | - | 4.91 | 216,607 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,120 |
| History of Russia Quiz | 0 | - | 4.47 | 31,917 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,658 |
| History of Italy | 0 | - | 4.55 | 31,973 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,743 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,925 |
| Roman Names for Places | 0 | - | 4.62 | 58,282 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,659 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,372 |
| Countries that Beat Iceland | 0 | - | 4.82 | 42,860 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,236 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,862 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,791 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,661 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,143 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,959 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,037 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,652 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,656 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,201 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,695 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,150 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,503 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,832 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,279 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,185 |
| Slavic Countries | 0 | - | 4.96 | 111,653 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,805 |
| Ancient Greek Words | 0 | - | 4.93 | 111,595 |
| Counties of England | 0 | - | 4.97 | 796,675 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,935 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,954 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,176 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,140 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,095 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,130 |
| Sweden Country Quiz | 0 | - | 4.35 | 68,208 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,537 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,262 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,598 |
| History of Scotland | 0 | - | 4.51 | 21,091 |
| Champions League Winners | 0 | - | 4.92 | 1,006,666 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,852 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,516 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,298 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,756 |
| Monarchies of Europe | 0 | - | 4.90 | 98,141 |
| European Countries with One Border | 0 | - | 4.97 | 182,771 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,572 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,544 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,140 |
| Countries That Border Russia | 0 | - | 4.98 | 461,725 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,894 |
| History of Austria | 0 | - | 4.70 | 17,861 |
| Austria Country Quiz | 0 | - | 4.57 | 59,734 |
| Belgium Country Quiz | 0 | - | 4.73 | 71,793 |
| France Country Quiz | 0 | - | 4.70 | 134,973 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,428 |
| Geography of the French Empire | 0 | - | 4.45 | 27,059 |
| The French Revolution | 0 | - | 4.47 | 23,929 |
| Kings of France Quiz | 0 | - | 4.20 | 32,744 |
| History of France | 0 | - | 4.59 | 56,974 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,809 |
| States of Germany | 0 | - | 4.96 | 152,560 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,033 |
| Greece Country Quiz | 0 | - | 4.74 | 66,249 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,499 |
| Regions of Italy | 0 | - | 4.92 | 75,863 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,183 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,747 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,503 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,526 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,147 |
| The Vikings! | 0 | - | 4.46 | 28,343 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,125 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,899 |
| The Portuguese Empire | 0 | - | 4.58 | 12,064 |
| Spain Country Quiz | 0 | - | 4.44 | 128,521 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,932 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,368 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,203 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 93,995 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,034 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,729 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,350 |
| English Royal Consorts | 0 | - | 4.38 | 37,351 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,467 |
| Geography of the British Empire | 0 | - | 4.48 | 39,671 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,699 |
| Counties of Wales | 0 | - | 4.63 | 39,272 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,859 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,112 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,998 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,245 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,808 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,123 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,987 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,708 |
| Russia Country Quiz | 0 | - | 4.85 | 114,481 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,337 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,342 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,796 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,946 |
| History of Ireland | 0 | - | 4.39 | 31,176 |
| Byzantine History | 0 | - | 4.91 | 28,867 |
| Byzantine Emperors | 0 | - | 4.92 | 14,092 |
| History of The Netherlands | 0 | - | 4.46 | 17,433 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,980 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,432 |
| UK Immigration by Country | 0 | - | 4.94 | 140,890 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,777 |
| British Monopoly Board | 0 | - | 4.52 | 41,167 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,340 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,698,469 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,792 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,212 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,106 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,655 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,383 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,958 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,442 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,054 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,263 |
| Countries that Border Poland | 0 | - | 4.99 | 172,272 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,845 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,785 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,823 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,220 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,872 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,803 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,392 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,768 |
| 20 Questions About France | 0 | - | 4.11 | 32,408 |
| Countries that Beat France | 0 | - | 4.49 | 75,843 |
