| The Trojan War | 0 | - | 4.83 | 39,475 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,744 |
| Name the English Monarchs | 0 | - | 4.92 | 498,682 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,465 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,198 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,615 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,125 |
| Roman Emperors | 0 | - | 4.95 | 118,660 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,552 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,104 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,560 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,594 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,238 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,144 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,603 |
| Europe Map Quiz | 0 | - | 5.00 | 4,735,761 |
| Countries Bordering France | 0 | - | 4.83 | 400,155 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,363 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,996 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,196 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,376 |
| Departments of France | 0 | - | 4.93 | 52,980 |
| Germany Country Quiz | 0 | - | 4.82 | 156,763 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,302 |
| Italy Country Quiz | 0 | - | 4.82 | 122,372 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,553 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,223 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,398 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,189 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,779 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,509 |
| England or Wales? | 0 | - | 4.94 | 45,385 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,624 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,550 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,860 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,592 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,867 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,659 |
| Counties of Ireland | 0 | - | 4.92 | 193,369 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,521 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,496 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,818 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,703 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,923 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,851 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,855 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,448 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,522 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,807 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,796 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,812 |
| Name that Greek Letter | 0 | - | 4.94 | 321,924 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,032 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,964 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,509 |
| Finland Country Quiz | 0 | - | 4.50 | 59,199 |
| Norway Country Quiz | 0 | - | 4.44 | 76,751 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,907 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,944 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,765 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,534 |
| Medieval English History | 0 | - | 4.53 | 43,344 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,302 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,619 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,795 |
| The Only European Country ... | 0 | - | 4.91 | 214,236 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,801 |
| History of Russia Quiz | 0 | - | 4.49 | 31,804 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,475 |
| History of Italy | 0 | - | 4.55 | 31,851 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,568 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,726 |
| Roman Names for Places | 0 | - | 4.62 | 57,927 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,503 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,164 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,402 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,011 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,612 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,636 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,359 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,984 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,855 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,180 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,081 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,840 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,422 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,663 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,572 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,158 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,525 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,403 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,318 |
| Slavic Countries | 0 | - | 4.96 | 110,978 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,025 |
| Ancient Greek Words | 0 | - | 4.92 | 110,830 |
| Counties of England | 0 | - | 4.97 | 790,247 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,707 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,750 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,721 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,012 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,094 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,677 |
| Sweden Country Quiz | 0 | - | 4.35 | 67,803 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,548 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,138 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,200 |
| History of Scotland | 0 | - | 4.51 | 21,018 |
| Champions League Winners | 0 | - | 4.92 | 997,703 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,461 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,131 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,548 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,061 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,932 |
| Monarchies of Europe | 0 | - | 4.90 | 97,447 |
| European Countries with One Border | 0 | - | 4.97 | 181,779 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,674 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,418 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,458 |
| Countries That Border Russia | 0 | - | 4.98 | 459,503 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,297 |
| History of Austria | 0 | - | 4.70 | 17,771 |
| Austria Country Quiz | 0 | - | 4.57 | 59,408 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,319 |
| France Country Quiz | 0 | - | 4.70 | 133,981 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,375 |
| Geography of the French Empire | 0 | - | 4.45 | 26,958 |
| The French Revolution | 0 | - | 4.46 | 23,811 |
| Kings of France Quiz | 0 | - | 4.20 | 32,582 |
| History of France | 0 | - | 4.59 | 56,254 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,878 |
| States of Germany | 0 | - | 4.96 | 150,419 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,399 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,130 |
| Greece Country Quiz | 0 | - | 4.74 | 65,829 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,433 |
| Regions of Italy | 0 | - | 4.92 | 74,884 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,119 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,533 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,283 |
| Netherlands Country Quiz | 0 | - | 4.50 | 80,058 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,926 |
| The Vikings! | 0 | - | 4.46 | 28,260 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,737 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,433 |
| The Portuguese Empire | 0 | - | 4.54 | 12,004 |
| Spain Country Quiz | 0 | - | 4.45 | 127,749 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,565 |
| Switzerland Country Quiz | 0 | - | 4.51 | 62,993 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,451 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,143 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,301 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,585 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,219 |
| English Royal Consorts | 0 | - | 4.37 | 37,215 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,917 |
| Geography of the British Empire | 0 | - | 4.48 | 39,522 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,567 |
| Counties of Wales | 0 | - | 4.63 | 38,956 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,044 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,348 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,224 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,857 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,488 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,420 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,329 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,428 |
| Russia Country Quiz | 0 | - | 4.85 | 113,770 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,935 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,093 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,670 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,251 |
| History of Ireland | 0 | - | 4.39 | 30,881 |
| Byzantine History | 0 | - | 4.91 | 28,653 |
| History of The Netherlands | 0 | - | 4.46 | 17,335 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,112 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,123 |
| UK Immigration by Country | 0 | - | 4.94 | 139,830 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,426 |
| British Monopoly Board | 0 | - | 4.52 | 41,065 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,717 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,660,694 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,419 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,110 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,832 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,611 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,929 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,304 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,922 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,111 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,839 |
| Countries that Border Poland | 0 | - | 4.99 | 171,492 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,441 |
| Countries that Beat Russia | 0 | - | 4.84 | 82,008 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,845 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,774 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,665 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,583 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,856 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,868 |
| 20 Questions About France | 0 | - | 4.11 | 32,347 |
