| Name the English Monarchs | 0 | - | 4.91 | 502,780 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,959 |
| The Trojan War | 0 | - | 4.83 | 39,733 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,870 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,538 |
| Roman Emperors | 0 | - | 4.95 | 120,072 |
| Monarchies of Europe | 0 | - | 4.90 | 98,165 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,795 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,680 |
| Countries Bordering France | 0 | - | 4.83 | 402,596 |
| Departments of France | 0 | - | 4.93 | 54,140 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,776 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,876 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,183 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,130 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,875 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,294 |
| French History Multiple Choice | 0 | - | 4.55 | 33,045 |
| English Royal Consorts | 0 | - | 4.38 | 37,362 |
| French History A-Z | 0 | - | 4.27 | 24,653 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,017 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,001 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,914 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,335 |
| Medieval English History | 0 | - | 4.53 | 43,513 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,418 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 81,997 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,709 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,035 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,904 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,461 |
| Monarchies of Asia | 0 | - | 4.97 | 71,098 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,135 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,031 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,306 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,157 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,696 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,782 |
| Germany Country Quiz | 0 | - | 4.83 | 157,882 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,362 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,455 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,683 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,664 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,413 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,071 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,549 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,751 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,937 |
| Roman Names for Places | 0 | - | 4.62 | 58,298 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,943 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,675 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,638 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,756 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,154 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,964 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,505 |
| England or Wales? | 0 | - | 4.94 | 45,700 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,811 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,608 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,499 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,072 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,331 |
| France Country Quiz | 0 | - | 4.70 | 134,997 |
| History of France | 0 | - | 4.59 | 56,994 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,748 |
| Counties of Ireland | 0 | - | 4.92 | 195,336 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,872 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,068 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,012 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,281 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,807 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,265 |
| History of Scotland | 0 | - | 4.51 | 21,095 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,669 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,853 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,267 |
| Geography of the French Empire | 0 | - | 4.45 | 27,061 |
| The French Revolution | 0 | - | 4.47 | 23,937 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,219 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,461 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,504 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,565 |
| Name that Greek Letter | 0 | - | 4.93 | 323,476 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,500 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,183 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,355 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,954 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,428 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,049 |
| Countries in World War I | 0 | - | 4.88 | 228,167 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,519 |
| Countries that Beat France | 0 | - | 4.49 | 75,862 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,923 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,027 |
| British Monopoly Board | 0 | - | 4.52 | 41,169 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,360 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,068 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,465 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,867 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,287 |
| The Only European Country ... | 0 | - | 4.91 | 216,690 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,172 |
| History of Russia Quiz | 0 | - | 4.47 | 31,919 |
| 20 Questions About France | 0 | - | 4.11 | 32,412 |
| Ancient Greek Words | 0 | - | 4.93 | 111,628 |
| History of Italy | 0 | - | 4.55 | 31,979 |
| Italian History A-Z | 0 | - | 4.21 | 17,709 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,664 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,240 |
| Spanish History A-Z | 0 | - | 4.37 | 19,299 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,276 |
| Counties of England | 0 | - | 4.97 | 796,965 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,868 |
| Oldest Cities in the United Kingdom | 0 | - | 4.39 | 23,718 |
| British History A-Z #1 | 0 | - | 4.45 | 46,489 |
| History of London | 0 | - | 4.33 | 26,195 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,618 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,843 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,101 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,686 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,221 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,758 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,169 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,992 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,595 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 171,937 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,305 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,204 |
| Slavic Countries | 0 | - | 4.96 | 111,677 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,233 |
| Regions of France | 0 | - | 4.72 | 120,823 |
| France Immigration by Country | 0 | - | 4.70 | 76,529 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,310 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,265 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,147 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,348 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,193 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,149 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,274 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,605 |
| British Geography A-Z | 0 | - | 4.42 | 19,523 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,669 |
| Champions League Winners | 0 | - | 4.92 | 1,006,960 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,878 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,619 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,369 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,196 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,883 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,874 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,562 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,354 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,150 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,437 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,777 |
| European Countries with One Border | 0 | - | 4.97 | 182,802 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,601 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,858 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,625 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,096 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,734 |
| Russia Country Quiz | 0 | - | 4.83 | 114,505 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,298 |
| Countries That Border Russia | 0 | - | 4.98 | 461,780 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,351 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,915 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,350 |
| History of Austria | 0 | - | 4.70 | 17,863 |
| Austria Country Quiz | 0 | - | 4.57 | 59,752 |
| Belgium Country Quiz | 0 | - | 4.73 | 71,812 |
| French Inventions | 0 | - | 4.08 | 13,899 |
| History of Paris | 0 | - | 4.24 | 13,649 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,839 |
| States of Germany | 0 | - | 4.96 | 152,643 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,053 |
| German History A-Z | 0 | - | 4.49 | 24,613 |
| Greece Country Quiz | 0 | - | 4.74 | 66,275 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,002 |
| History of Ireland | 0 | - | 4.39 | 31,192 |
| Regions of Italy | 0 | - | 4.92 | 75,911 |
| Italy Country Quiz | 0 | - | 4.80 | 123,424 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,757 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,511 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,541 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,184 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,465 |
| The Vikings! | 0 | - | 4.46 | 28,344 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,134 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,915 |
| The Portuguese Empire | 0 | - | 4.58 | 12,066 |
| Spain Country Quiz | 0 | - | 4.44 | 128,556 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,966 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,014 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,374 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,219 |
| UK Immigration by Country | 0 | - | 4.94 | 140,917 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,829 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,012 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,043 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,733 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,353 |
