| The Trojan War | 0 | - | 4.83 | 40,091 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,270 |
| Name the English Monarchs | 0 | - | 4.91 | 507,476 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,815 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,038 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,515 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,705 |
| Roman Emperors | 0 | - | 4.95 | 121,461 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,980 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,582 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,118 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,035 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,038 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,743 |
| Europe Map Quiz | 0 | - | 5.00 | 4,793,971 |
| Countries Bordering France | 0 | - | 4.83 | 405,400 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,285 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,495 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,832 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,997 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,016 |
| Departments of France | 0 | - | 4.93 | 55,422 |
| Germany Country Quiz | 0 | - | 4.82 | 159,092 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,252 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,452 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,250 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,785 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,639 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,057 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,067 |
| England or Wales? | 0 | - | 4.94 | 46,063 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,440 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,293 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,059 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,234 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,572 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,186 |
| Counties of Ireland | 0 | - | 4.92 | 197,721 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,384 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,691 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,811 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,400 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,695 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,434 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,432 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,516 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,286 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,076 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,091 |
| Name that Greek Letter | 0 | - | 4.93 | 325,338 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,053 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,317 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,303 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,338 |
| Finland Country Quiz | 0 | - | 4.51 | 60,089 |
| Norway Country Quiz | 0 | - | 4.45 | 77,925 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,441 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,307 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,013 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,445 |
| Medieval English History | 0 | - | 4.53 | 43,693 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,287 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,631 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,529 |
| The Only European Country ... | 0 | - | 4.91 | 219,650 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,866 |
| History of Russia Quiz | 0 | - | 4.47 | 32,029 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,895 |
| History of Italy | 0 | - | 4.55 | 32,187 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,401 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,270 |
| Roman Names for Places | 0 | - | 4.62 | 58,795 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,856 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,563 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,309 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,470 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,150 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,006 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,034 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,359 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,106 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,789 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,364 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,805 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,562 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,324 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,918 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,225 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,590 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,394 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,932 |
| Slavic Countries | 0 | - | 4.96 | 112,527 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,547 |
| Ancient Greek Words | 0 | - | 4.93 | 112,692 |
| Counties of England | 0 | - | 4.97 | 804,418 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,776 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,226 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,617 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,262 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,511 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,630 |
| Sweden Country Quiz | 0 | - | 4.35 | 68,625 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,887 |
| Embarrassing Chapters in British History | 0 | - | 4.31 | 32,412 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,165 |
| History of Scotland | 0 | - | 4.51 | 21,195 |
| Champions League Winners | 0 | - | 4.92 | 1,018,210 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,114 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,010 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,756 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,905 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,643 |
| Monarchies of Europe | 0 | - | 4.90 | 99,052 |
| European Countries with One Border | 0 | - | 4.97 | 184,052 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,773 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,106 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,970 |
| Countries That Border Russia | 0 | - | 4.98 | 464,969 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,598 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Austria Country Quiz | 0 | - | 4.57 | 60,126 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,383 |
| France Country Quiz | 0 | - | 4.70 | 135,835 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,829 |
| Geography of the French Empire | 0 | - | 4.45 | 27,236 |
| The French Revolution | 0 | - | 4.47 | 24,169 |
| Kings of France Quiz | 0 | - | 4.22 | 32,972 |
| History of France | 0 | - | 4.61 | 57,739 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,992 |
| States of Germany | 0 | - | 4.95 | 154,972 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,580 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,825 |
| Greece Country Quiz | 0 | - | 4.74 | 66,720 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,597 |
| Regions of Italy | 0 | - | 4.92 | 77,279 |
| Italy Country Quiz | 0 | - | 4.77 | 124,239 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,278 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,992 |
| Monaco Country Quiz | 0 | - | 4.48 | 41,728 |
| Netherlands Country Quiz | 0 | - | 4.52 | 81,058 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,930 |
| The Vikings! | 0 | - | 4.46 | 28,425 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,443 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,425 |
| The Portuguese Empire | 0 | - | 4.58 | 12,119 |
| Spain Country Quiz | 0 | - | 4.44 | 129,423 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,612 |
| Switzerland Country Quiz | 0 | - | 4.52 | 63,732 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,909 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,656 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,473 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,885 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,492 |
| English Royal Consorts | 0 | - | 4.38 | 37,572 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,393 |
| Geography of the British Empire | 0 | - | 4.48 | 39,882 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,874 |
| Counties of Wales | 0 | - | 4.63 | 39,684 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,088 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,977 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,391 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,365 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,310 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,455 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,146 |
| Russia Country Quiz | 0 | - | 4.83 | 115,467 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,843 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,651 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,031 |
| Figures from Greek Mythology | 0 | - | 4.92 | 193,034 |
| History of Ireland | 0 | - | 4.39 | 31,496 |
| Byzantine History | 0 | - | 4.91 | 29,055 |
| Byzantine Emperors | 0 | - | 4.93 | 14,665 |
| History of The Netherlands | 0 | - | 4.46 | 17,572 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,141 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,783 |
| UK Immigration by Country | 0 | - | 4.94 | 141,917 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,293 |
| British Monopoly Board | 0 | - | 4.52 | 41,294 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,513 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,724 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,731,778 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,034 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,408 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,742 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,835 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,212 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,069 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,296 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,791 |
| Countries that Border Poland | 0 | - | 4.99 | 173,361 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,361 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,766 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,343 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,116 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,097 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,069 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,230 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,006 |
| 20 Questions About France | 0 | - | 4.11 | 32,486 |
