| Name the English Monarchs | 0 | - | 4.91 | 505,372 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,087 |
| The Trojan War | 0 | - | 4.83 | 39,930 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,669 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,478 |
| Roman Emperors | 0 | - | 4.95 | 120,877 |
| Monarchies of Europe | 0 | - | 4.90 | 98,641 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,906 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,874 |
| Countries Bordering France | 0 | - | 4.83 | 404,344 |
| Departments of France | 0 | - | 4.93 | 54,853 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,069 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,386 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,506 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,259 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,713 |
| French History Multiple Choice | 0 | - | 4.55 | 33,178 |
| English Royal Consorts | 0 | - | 4.38 | 37,482 |
| French History A-Z | 0 | - | 4.27 | 25,028 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,338 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,172 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,002 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,558 |
| Medieval English History | 0 | - | 4.53 | 43,618 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,078 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,667 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,485 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,618 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,379 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,358 |
| Monarchies of Asia | 0 | - | 4.97 | 71,382 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,613 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,558 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,123 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,420 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,874 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,511 |
| Germany Country Quiz | 0 | - | 4.83 | 158,561 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,895 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,323 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,142 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,785 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,014 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,870 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,700 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,055 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,153 |
| Roman Names for Places | 0 | - | 4.62 | 58,607 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,319 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,584 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,461 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,831 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,271 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,052 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,550 |
| England or Wales? | 0 | - | 4.94 | 45,892 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,568 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,585 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,691 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,792 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,833 |
| France Country Quiz | 0 | - | 4.70 | 135,442 |
| History of France | 0 | - | 4.61 | 57,462 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,078 |
| Counties of Ireland | 0 | - | 4.92 | 196,826 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,161 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,051 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,792 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,438 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,942 |
| Embarrassing Chapters in British History | 0 | - | 4.30 | 32,341 |
| History of Scotland | 0 | - | 4.51 | 21,151 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,954 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,178 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,166 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,574 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,089 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,553 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,693 |
| Name that Greek Letter | 0 | - | 4.93 | 324,657 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,024 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,235 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,726 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,224 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,030 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,792 |
| Countries in World War I | 0 | - | 4.88 | 228,822 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,703 |
| Countries that Beat France | 0 | - | 4.48 | 76,215 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,958 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,124 |
| British Monopoly Board | 0 | - | 4.52 | 41,235 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,662 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,267 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,715 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,611 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,731 |
| The Only European Country ... | 0 | - | 4.91 | 218,337 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,144 |
| History of Russia Quiz | 0 | - | 4.47 | 31,985 |
| 20 Questions About France | 0 | - | 4.11 | 32,450 |
| Ancient Greek Words | 0 | - | 4.93 | 112,237 |
| History of Italy | 0 | - | 4.55 | 32,107 |
| Italian History A-Z | 0 | - | 4.16 | 17,879 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,781 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,379 |
| Spanish History A-Z | 0 | - | 4.37 | 19,465 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,619 |
| Counties of England | 0 | - | 4.97 | 801,241 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,039 |
| Oldest Cities in the United Kingdom | 0 | - | 4.39 | 23,793 |
| British History A-Z #1 | 0 | - | 4.45 | 47,068 |
| History of London | 0 | - | 4.33 | 26,249 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,923 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,941 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,063 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,281 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,833 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,207 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,607 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,131 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,198 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,917 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,936 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,641 |
| Slavic Countries | 0 | - | 4.96 | 112,183 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,311 |
| Regions of France | 0 | - | 4.70 | 121,728 |
| France Immigration by Country | 0 | - | 4.70 | 76,828 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,504 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,974 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,211 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,393 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,040 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,410 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,379 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,910 |
| British Geography A-Z | 0 | - | 4.42 | 19,590 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,768 |
| Champions League Winners | 0 | - | 4.92 | 1,013,108 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,615 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,048 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,557 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,317 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,231 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,199 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,608 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,249 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,280 |
| European Countries with One Border | 0 | - | 4.97 | 183,504 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,243 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,427 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,262 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,707 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,600 |
| Russia Country Quiz | 0 | - | 4.83 | 115,137 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,907 |
| Countries That Border Russia | 0 | - | 4.98 | 463,895 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,618 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,321 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,504 |
| History of Austria | 0 | - | 4.70 | 17,950 |
| Austria Country Quiz | 0 | - | 4.57 | 59,971 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,123 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| History of Paris | 0 | - | 4.24 | 13,667 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,544 |
| States of Germany | 0 | - | 4.95 | 153,981 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,541 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,528 |
| German History A-Z | 0 | - | 4.49 | 24,858 |
| Greece Country Quiz | 0 | - | 4.74 | 66,534 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,921 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,352 |
| History of Ireland | 0 | - | 4.39 | 31,371 |
| Regions of Italy | 0 | - | 4.92 | 76,681 |
| Italy Country Quiz | 0 | - | 4.77 | 123,878 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,893 |
| Monaco Country Quiz | 0 | - | 4.48 | 41,639 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,813 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,649 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,649 |
| The Vikings! | 0 | - | 4.46 | 28,391 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,311 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,202 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| Spain Country Quiz | 0 | - | 4.44 | 129,054 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,996 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,584 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,567 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,606 |
| UK Immigration by Country | 0 | - | 4.94 | 141,458 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,657 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,375 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,263 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,817 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,435 |
