| The Trojan War | 0 | - | 4.83 | 40,007 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,022 |
| Name the English Monarchs | 0 | - | 4.91 | 506,825 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,704 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,430 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,909 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,475 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,616 |
| Roman Emperors | 0 | - | 4.95 | 121,280 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,646 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,430 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,633 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,858 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,904 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,626 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,707 |
| Countries Bordering France | 0 | - | 4.83 | 405,039 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,970 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,347 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,767 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,953 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,859 |
| Departments of France | 0 | - | 4.93 | 55,232 |
| Germany Country Quiz | 0 | - | 4.82 | 158,900 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,119 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,282 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,087 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,530 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,922 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,847 |
| England or Wales? | 0 | - | 4.94 | 45,985 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,061 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,106 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,968 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,167 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,508 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,783 |
| Counties of Ireland | 0 | - | 4.92 | 197,408 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,282 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,456 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,754 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,196 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,475 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,090 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,330 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,375 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,249 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,053 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,251 |
| Name that Greek Letter | 0 | - | 4.93 | 325,078 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,982 |
| Countries Italy Declared War On | 0 | - | 4.70 | 46,012 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,214 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,290 |
| Finland Country Quiz | 0 | - | 4.51 | 60,032 |
| Norway Country Quiz | 0 | - | 4.45 | 77,850 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,409 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,188 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,908 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,374 |
| Medieval English History | 0 | - | 4.53 | 43,662 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,940 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,338 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,265 |
| The Only European Country ... | 0 | - | 4.91 | 219,219 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,626 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,860 |
| History of Italy | 0 | - | 4.55 | 32,160 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,324 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,222 |
| Roman Names for Places | 0 | - | 4.62 | 58,728 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,531 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,250 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,435 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,111 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,980 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,976 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,330 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,097 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 69,095 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,144 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,234 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,633 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,138 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,956 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,831 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,898 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,037 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,239 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,826 |
| Slavic Countries | 0 | - | 4.96 | 112,418 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,930 |
| Ancient Greek Words | 0 | - | 4.93 | 112,532 |
| Counties of England | 0 | - | 4.97 | 803,339 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,974 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,166 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,433 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,245 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,982 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,534 |
| Sweden Country Quiz | 0 | - | 4.35 | 68,567 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,562 |
| Embarrassing Chapters in British History | 0 | - | 4.30 | 32,380 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,084 |
| History of Scotland | 0 | - | 4.51 | 21,179 |
| Champions League Winners | 0 | - | 4.92 | 1,016,688 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,025 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,881 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,586 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,667 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,514 |
| Monarchies of Europe | 0 | - | 4.90 | 98,920 |
| European Countries with One Border | 0 | - | 4.97 | 183,873 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,594 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,945 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,629 |
| Countries That Border Russia | 0 | - | 4.98 | 464,619 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,504 |
| History of Austria | 0 | - | 4.70 | 17,978 |
| Austria Country Quiz | 0 | - | 4.57 | 60,070 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,280 |
| France Country Quiz | 0 | - | 4.70 | 135,705 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,699 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,153 |
| Kings of France Quiz | 0 | - | 4.21 | 32,937 |
| History of France | 0 | - | 4.61 | 57,656 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,856 |
| States of Germany | 0 | - | 4.95 | 154,642 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,563 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,730 |
| Greece Country Quiz | 0 | - | 4.74 | 66,661 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,588 |
| Regions of Italy | 0 | - | 4.92 | 77,138 |
| Italy Country Quiz | 0 | - | 4.77 | 124,094 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,268 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,958 |
| Monaco Country Quiz | 0 | - | 4.48 | 41,701 |
| Netherlands Country Quiz | 0 | - | 4.52 | 80,967 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,826 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,398 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,345 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
| Spain Country Quiz | 0 | - | 4.44 | 129,296 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,409 |
| Switzerland Country Quiz | 0 | - | 4.52 | 63,661 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,794 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,559 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,391 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,867 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,468 |
| English Royal Consorts | 0 | - | 4.38 | 37,538 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,292 |
| Geography of the British Empire | 0 | - | 4.48 | 39,852 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Counties of Wales | 0 | - | 4.63 | 39,637 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,955 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,848 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,009 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,015 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,024 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,830 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,950 |
| Russia Country Quiz | 0 | - | 4.83 | 115,351 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,776 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,604 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,004 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,964 |
| History of Ireland | 0 | - | 4.39 | 31,442 |
| Byzantine History | 0 | - | 4.91 | 29,030 |
| Byzantine Emperors | 0 | - | 4.93 | 14,617 |
| History of The Netherlands | 0 | - | 4.46 | 17,557 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,987 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,729 |
| UK Immigration by Country | 0 | - | 4.94 | 141,770 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,095 |
| British Monopoly Board | 0 | - | 4.52 | 41,276 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,250 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,582 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,423 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,835 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,346 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,372 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,724 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,760 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,718 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,981 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,140 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,706 |
| Countries that Border Poland | 0 | - | 4.99 | 173,218 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,296 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,648 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,976 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,033 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,063 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,041 |
