| Name the English Monarchs | 0 | - | 4.91 | 501,483 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,903 |
| The Trojan War | 0 | - | 4.83 | 39,650 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,535 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,418 |
| Roman Emperors | 0 | - | 4.95 | 119,655 |
| Monarchies of Europe | 0 | - | 4.90 | 97,951 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,742 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,574 |
| Countries Bordering France | 0 | - | 4.83 | 401,886 |
| Departments of France | 0 | - | 4.93 | 53,786 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,716 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,790 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,089 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,919 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,523 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,099 |
| French History Multiple Choice | 0 | - | 4.55 | 33,002 |
| English Royal Consorts | 0 | - | 4.37 | 37,322 |
| French History A-Z | 0 | - | 4.23 | 24,555 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,873 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,937 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,875 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,248 |
| Medieval English History | 0 | - | 4.53 | 43,462 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,883 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,123 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,284 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,703 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,610 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,152 |
| Monarchies of Asia | 0 | - | 4.97 | 70,982 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,883 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,783 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,616 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,678 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,453 |
| Germany Country Quiz | 0 | - | 4.82 | 157,578 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,866 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,606 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,470 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,606 |
| Italy Country Quiz | 0 | - | 4.82 | 123,194 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,125 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,813 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,516 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,695 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,860 |
| Roman Names for Places | 0 | - | 4.62 | 58,181 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,656 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,370 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,235 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,720 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,104 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,925 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,488 |
| England or Wales? | 0 | - | 4.94 | 45,602 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,512 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,480 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,390 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,782 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,185 |
| France Country Quiz | 0 | - | 4.70 | 134,760 |
| History of France | 0 | - | 4.59 | 56,830 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,095 |
| Counties of Ireland | 0 | - | 4.92 | 194,637 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,752 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,701 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,625 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,011 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,170 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,223 |
| History of Scotland | 0 | - | 4.51 | 21,075 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,249 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,693 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,493 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,616 |
| Geography of the French Empire | 0 | - | 4.45 | 27,025 |
| The French Revolution | 0 | - | 4.46 | 23,901 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,062 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,109 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,480 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,118 |
| Name that Greek Letter | 0 | - | 4.93 | 323,087 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,311 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,167 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,145 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,784 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,179 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,697 |
| Countries in World War I | 0 | - | 4.88 | 227,825 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,944 |
| Countries that Beat France | 0 | - | 4.49 | 75,613 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,571 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,532 |
| British Monopoly Board | 0 | - | 4.52 | 41,138 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,267 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,538 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,958 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,200 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,831 |
| The Only European Country ... | 0 | - | 4.91 | 215,985 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,771 |
| History of Russia Quiz | 0 | - | 4.49 | 31,880 |
| 20 Questions About France | 0 | - | 4.11 | 32,397 |
| Ancient Greek Words | 0 | - | 4.93 | 111,353 |
| History of Italy | 0 | - | 4.55 | 31,936 |
| Italian History A-Z | 0 | - | 4.21 | 17,671 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,613 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,165 |
| Spanish History A-Z | 0 | - | 4.37 | 19,267 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,120 |
| Counties of England | 0 | - | 4.97 | 794,798 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,794 |
| Oldest Cities in the United Kingdom | 0 | - | 4.39 | 23,695 |
| British History A-Z #1 | 0 | - | 4.45 | 46,400 |
| History of London | 0 | - | 4.33 | 26,173 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,469 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,808 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,200 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,424 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,969 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,166 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,985 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,917 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,968 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,603 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,001 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,725 |
| Slavic Countries | 0 | - | 4.96 | 111,489 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,194 |
| Regions of France | 0 | - | 4.75 | 120,412 |
| France Immigration by Country | 0 | - | 4.70 | 76,402 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,225 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,662 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,118 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,329 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,307 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,002 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,235 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,022 |
| British Geography A-Z | 0 | - | 4.42 | 19,495 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,606 |
| Champions League Winners | 0 | - | 4.92 | 1,003,739 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,610 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,342 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,088 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,923 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,798 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,667 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,247 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,906 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,904 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,947 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,501 |
| European Countries with One Border | 0 | - | 4.97 | 182,512 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,317 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,281 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,947 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,952 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,341 |
| Russia Country Quiz | 0 | - | 4.85 | 114,279 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,395 |
| Countries That Border Russia | 0 | - | 4.98 | 461,100 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,238 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,725 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,293 |
| History of Austria | 0 | - | 4.70 | 17,834 |
| Austria Country Quiz | 0 | - | 4.57 | 59,636 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,654 |
| French Inventions | 0 | - | 4.08 | 13,890 |
| History of Paris | 0 | - | 4.24 | 13,637 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,540 |
| States of Germany | 0 | - | 4.96 | 151,912 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,887 |
| German History A-Z | 0 | - | 4.49 | 24,573 |
| Greece Country Quiz | 0 | - | 4.74 | 66,138 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,441 |
| History of Ireland | 0 | - | 4.39 | 31,114 |
| Regions of Italy | 0 | - | 4.92 | 75,551 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,696 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,437 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,392 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,873 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,379 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,044 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,745 |
| The Portuguese Empire | 0 | - | 4.58 | 12,047 |
| Spain Country Quiz | 0 | - | 4.45 | 128,313 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,643 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,718 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,258 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,010 |
| UK Immigration by Country | 0 | - | 4.94 | 140,673 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,461 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,562 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,567 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,677 |
