| The Trojan War | 0 | - | 4.83 | 39,452 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,621 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,230 |
| Name that Greek Letter | 0 | - | 4.94 | 321,771 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,787 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,776 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,080 |
| Roman Emperors | 0 | - | 4.95 | 118,552 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,943 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,449 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,386 |
| Name the English Monarchs | 0 | - | 4.92 | 498,184 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,425 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,545 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,689 |
| Roman Names for Places | 0 | - | 4.62 | 57,894 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,292 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,550 |
| Medieval English History | 0 | - | 4.53 | 43,331 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,011 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,478 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,480 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,169 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,068 |
| Countries Bordering France | 0 | - | 4.83 | 399,588 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,171 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,546 |
| Ancient Greek Words | 0 | - | 4.92 | 110,739 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,118 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,314 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,968 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,843 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,846 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,267 |
| Departments of France | 0 | - | 4.93 | 52,880 |
| Germany Country Quiz | 0 | - | 4.82 | 156,634 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,201 |
| Italy Country Quiz | 0 | - | 4.82 | 122,282 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,451 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,134 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,381 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,119 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,705 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,376 |
| England or Wales? | 0 | - | 4.94 | 45,347 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,168 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,530 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,816 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,558 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,830 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,438 |
| Greece Country Quiz | 0 | - | 4.74 | 65,782 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,991 |
| Counties of Ireland | 0 | - | 4.92 | 193,172 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,476 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,386 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,378 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,725 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,132 |
| History of Scotland | 0 | - | 4.51 | 21,010 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,783 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,802 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,395 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,420 |
| Kings of France Quiz | 0 | - | 4.20 | 32,568 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,722 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,429 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,062 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,986 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,906 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,708 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,490 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,386 |
| English Royal Consorts | 0 | - | 4.37 | 37,181 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,621 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,104 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,430 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,663 |
| The Only European Country ... | 0 | - | 4.91 | 213,980 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,641 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,588 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,338 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| French History Multiple Choice | 0 | - | 4.55 | 32,882 |
| Countries that Beat Greece | 0 | - | 4.52 | 48,604 |
| History of Italy | 0 | - | 4.55 | 31,829 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,990 |
| Counties of England | 0 | - | 4.97 | 789,619 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,522 |
| Oldest Cities in the United Kingdom | 0 | - | 4.39 | 23,620 |
| History of London | 0 | - | 4.33 | 26,104 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,148 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,216 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,745 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,338 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,455 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,505 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,938 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,061 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,311 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,238 |
| Slavic Countries | 0 | - | 4.96 | 110,899 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,044 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,713 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,643 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,276 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,620 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,432 |
| Champions League Winners | 0 | - | 4.92 | 996,889 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,360 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,072 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,448 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,940 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,859 |
| Monarchies of Europe | 0 | - | 4.90 | 97,363 |
| European Countries with One Border | 0 | - | 4.97 | 181,685 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,586 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,299 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,118 |
| Countries That Border Russia | 0 | - | 4.98 | 459,037 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,244 |
| History of Austria | 0 | - | 4.70 | 17,759 |
| Austria Country Quiz | 0 | - | 4.57 | 59,369 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,278 |
| France Country Quiz | 0 | - | 4.70 | 133,902 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,265 |
| Geography of the French Empire | 0 | - | 4.48 | 26,943 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| History of France | 0 | - | 4.59 | 56,127 |
| French History A-Z | 0 | - | 4.17 | 22,326 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,773 |
| States of Germany | 0 | - | 4.96 | 150,191 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,389 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,069 |
| Regions of Italy | 0 | - | 4.92 | 74,788 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,498 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,261 |
| Netherlands Country Quiz | 0 | - | 4.50 | 80,002 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,864 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,783 |
| The Vikings! | 0 | - | 4.46 | 28,250 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,719 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,374 |
| The Portuguese Empire | 0 | - | 4.54 | 11,996 |
| Spain Country Quiz | 0 | - | 4.45 | 127,666 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,432 |
| Switzerland Country Quiz | 0 | - | 4.51 | 62,955 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,241 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,057 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,246 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,571 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,199 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,841 |
| Geography of the British Empire | 0 | - | 4.48 | 39,495 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,528 |
| Counties of Wales | 0 | - | 4.63 | 38,921 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,956 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,656,878 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,327 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,287 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,150 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,802 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,873 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,864 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,658 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,337 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,261 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,014 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,990 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,312 |
| Countries that Border Poland | 0 | - | 4.99 | 171,415 |
| Russia Country Quiz | 0 | - | 4.85 | 113,687 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,398 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,607 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,876 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,725 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,053 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,781 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,631 |
| German Inventions | 0 | - | 3.91 | 30,185 |
| Embarrassing Chapters in German History | 0 | - | 3.41 | 12,576 |
| Roman to Greek God | 0 | - | 4.52 | 122,245 |
| History of Ireland | 0 | - | 4.39 | 30,846 |
| Italian History A-Z | 0 | - | 4.21 | 17,459 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,966 |
| Roman History by Picture | 0 | - | 4.46 | 26,347 |
| Byzantine History | 0 | - | 4.91 | 28,632 |
| History of The Netherlands | 0 | - | 4.46 | 17,320 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,460 |
| Finland Country Quiz | 0 | - | 4.50 | 59,146 |
| Norway Country Quiz | 0 | - | 4.44 | 76,666 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,875 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,990 |
| Spanish History A-Z | 0 | - | 4.37 | 19,102 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,101 |
| UK Immigration by Country | 0 | - | 4.94 | 139,726 |
| Arthurian Legend | 0 | - | 4.33 | 25,050 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,275 |
| British Monopoly Board | 0 | - | 4.52 | 41,041 |
