| The Trojan War | 0 | - | 4.81 | 35,637 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 579,594 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,275 |
| Roman Emperors | 0 | - | 4.95 | 94,737 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,107 |
| Name that Greek Letter | 0 | - | 4.94 | 294,121 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.80 | 83,999 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.58 | 54,991 |
| Ancient Greece - Multiple Choice | 0 | - | 4.53 | 38,395 |
| English Monarchs Quiz | 0 | - | 4.91 | 442,932 |
| Geography of Ancient Greece | 0 | - | 4.76 | 29,723 |
| The Life of Alexander the Great | 0 | - | 4.51 | 17,391 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,200 |
| Geography of the Roman Empire | 0 | - | 4.58 | 48,113 |
| Roman Names for Places | 0 | - | 4.66 | 41,070 |
| Ancient Greek Inventions | 0 | - | 4.17 | 15,479 |
| Medieval English History | 0 | - | 4.52 | 40,566 |
| Olympian Gods Quiz | 0 | - | 4.96 | 455,022 |
| Seven Hills of Rome | 0 | - | 4.68 | 8,491 |
| Houses of British Monarchs | 0 | - | 4.50 | 51,712 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 51,258 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,470 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 61,646 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 48,036 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,734 |
| Countries Bordering France | 0 | - | 4.87 | 354,883 |
| Countries Bordering Germany | 0 | - | 4.99 | 338,657 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,072 |
| Ancient Greek Words | 0 | - | 4.90 | 96,229 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,384 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 85,307 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 168,018 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,330 |
| England or Wales? | 0 | - | 4.93 | 39,829 |
| Europe Map Quiz | 0 | - | 5.00 | 4,254,213 |
| France Cities Map Quiz | 0 | - | 4.95 | 146,789 |
| Germany Country Quiz | 0 | - | 4.83 | 138,881 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 105,070 |
| Italy Country Quiz | 0 | - | 4.81 | 107,596 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 132,257 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 126,181 |
| Countries Closest to Spain | 0 | - | 4.95 | 204,376 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 102,097 |
| History of Scotland | 0 | - | 4.49 | 19,517 |
| World Capitals Closest to London | 0 | - | 4.90 | 92,917 |
| 50 Busiest Air Routes from London | 0 | - | 4.88 | 84,812 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,448 |
| Countries Bordering Austria | 0 | - | 4.97 | 109,471 |
| Countries that Visit France the Most | 0 | - | 4.84 | 39,525 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 65,902 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 51,259 |
| Greece Country Quiz | 0 | - | 4.72 | 59,277 |
| Ancient Greece A-Z | 0 | - | 4.63 | 20,524 |
| Countries Bordering Italy | 0 | - | 4.92 | 78,525 |
| Countries Closest to Italy | 0 | - | 4.97 | 177,571 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,623 |
| Greenland Country Quiz | 0 | - | 4.82 | 32,046 |
| Countries that Beat Portugal | 0 | - | 4.82 | 35,211 |
| Countries that Beat Spain | 0 | - | 4.96 | 55,393 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 220,886 |
| English Royal Consorts | 0 | - | 4.27 | 34,361 |
| The Reign of Queen Elizabeth I | 0 | - | 4.50 | 29,498 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 381,909 |
| Andorra Country Quiz | 0 | - | 4.88 | 27,566 |
| The Reign of Napoleon | 0 | - | 4.53 | 35,913 |
| Countries that Beat Germany | 0 | - | 4.87 | 69,498 |
| Figures from Greek Mythology | 0 | - | 4.92 | 168,401 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,653 |
| Countries that Beat Italy | 0 | - | 4.87 | 44,749 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,489 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 333,810 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 90,831 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.82 | 38,905 |
| The Only European Country ... | 0 | - | 4.94 | 175,966 |
| French Geography Quiz #1 | 0 | - | 4.86 | 30,763 |
| The Life of Julius Caesar | 0 | - | 4.46 | 31,975 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,062 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 64,937 |
| Counties of England | 0 | - | 4.96 | 682,921 |
| Invasions of Great Britain | 0 | - | 4.48 | 55,140 |
| Oldest Cities in the United Kingdom | 0 | - | 4.34 | 21,978 |
| Embarrassing Chapters in British History | 0 | - | 4.28 | 30,141 |
| History of London | 0 | - | 4.31 | 24,166 |
| British History Quiz for Dummies | 0 | - | 4.54 | 61,122 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,032,246 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,170,765 |
| Countries that Beat Greece | 0 | - | 4.51 | 42,762 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 396,269 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,025 |
| UK Cities Map Quiz | 0 | - | 4.94 | 430,728 |
| The Reign of Henry VIII | 0 | - | 4.24 | 26,166 |
| British History Multiple Choice #2 | 0 | - | 4.40 | 28,462 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.29 | 23,257 |
| Champions League Winners | 0 | - | 4.90 | 838,317 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 159,537 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 137,388 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 183,404 |
| European Landmarks Map Quiz | 0 | - | 4.98 | 76,220 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 283,113 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 113,427 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 73,737 |
| Eastern Europe Map Quiz | 0 | - | 4.88 | 114,707 |
| Slavic Countries | 0 | - | 4.96 | 99,780 |
| Kings of France Quiz | 0 | - | 4.14 | 29,954 |
| Famous Ancient Romans | 0 | - | 4.72 | 73,935 |
| Monaco Country Quiz | 0 | - | 4.45 | 37,224 |
| Netherlands Country Quiz | 0 | - | 4.56 | 72,326 |
| Nordic Cities Map Quiz | 0 | - | 4.72 | 84,792 |
| The Vikings! | 0 | - | 4.44 | 27,013 |
| Sweden Immigration by Country | 0 | - | 4.66 | 41,917 |
| Portugal Country Quiz | 0 | - | 4.67 | 64,282 |
| The Portuguese Empire | 0 | - | 4.54 | 11,288 |
| Spain Country Quiz | 0 | - | 4.44 | 113,682 |
| Regions of Spain Quiz | 0 | - | 4.85 | 93,511 |
| Switzerland Country Quiz | 0 | - | 4.53 | 56,648 |
| Cantons of Switzerland | 0 | - | 4.96 | 39,756 |
| Parts of the United Kingdom | 0 | - | 4.88 | 82,955 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,194 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.50 | 36,326 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,496 |
| Countries the UK Declared War On | 0 | - | 4.57 | 110,945 |
| Counties of Wales | 0 | - | 4.60 | 33,190 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 263,641 |
| European Diaspora - Top 11 Countries | 0 | - | 4.91 | 82,760 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 119,474 |
| Three Band Flags of Europe | 0 | - | 4.97 | 159,498 |
| Pixelated Europe Map | 0 | - | 4.89 | 108,480 |
| Monarchies of Europe | 0 | - | 4.88 | 86,228 |
| European Countries with One Border | 0 | - | 4.96 | 149,106 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 143,345 |
| History of Russia Quiz | 0 | - | 4.48 | 29,735 |
| Federal Subjects of Russia | 0 | - | 4.95 | 110,175 |
| Countries That Border Russia | 0 | - | 4.98 | 423,278 |
| Countries Formerly in Yugoslavia | 0 | - | 4.94 | 100,941 |
| History of Austria | 0 | - | 4.68 | 16,281 |
| Austria Country Quiz | 0 | - | 4.55 | 53,697 |
| Belgium Country Quiz | 0 | - | 4.66 | 63,929 |
| France Country Quiz | 0 | - | 4.75 | 119,899 |
| Regions of France Map Quiz | 0 | - | 4.96 | 126,314 |
| Geography of the French Empire | 0 | - | 4.49 | 25,103 |
| The French Revolution | 0 | - | 4.44 | 21,803 |
| History of France Quiz | 0 | - | 4.55 | 39,477 |
| French History A-Z | 0 | - | 4.14 | 12,440 |
| States of Germany Map Quiz | 0 | - | 4.91 | 119,450 |
| States of Germany | 0 | - | 4.94 | 121,590 |
| Germany Immigration by Country | 0 | - | 4.90 | 68,891 |
| Counties of Ireland | 0 | - | 4.89 | 157,268 |
| History of Ireland Quiz | 0 | - | 4.43 | 18,777 |
| Regions of Italy | 0 | - | 4.88 | 59,529 |
| History of Italy | 0 | - | 4.49 | 29,646 |
| Roman History by Picture | 0 | - | 4.44 | 24,412 |
| Byzantine History | 0 | - | 4.87 | 26,077 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,320 |
| History of The Netherlands | 0 | - | 4.42 | 15,637 |
| Denmark Country Quiz | 0 | - | 4.79 | 69,106 |
| Finland Country Quiz | 0 | - | 4.48 | 52,483 |
| Norway Country Quiz | 0 | - | 4.42 | 56,170 |
| Iceland Country Quiz | 0 | - | 4.72 | 38,464 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,855 |
| Spanish History A-Z | 0 | - | 4.29 | 11,219 |
| Countries Bordering Spain | 0 | - | 4.50 | 63,963 |
| Switzerland Immigration by Country | 0 | - | 4.81 | 19,790 |
| UK Immigration by Country | 0 | - | 4.95 | 124,087 |
| Arthurian Legend | 0 | - | 4.34 | 24,219 |
| United Kingdom Country Quiz | 0 | - | 4.93 | 117,117 |
| British Monopoly Board | 0 | - | 4.50 | 38,688 |
| Countries that Visit the UK the Most | 0 | - | 4.84 | 61,636 |
| All Champions League Teams Ever | 0 | - | 4.89 | 102,419 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,367 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,817 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 179,965 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,790 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 65,753 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 127,472 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.93 | 55,532 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 198,181 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 243,660 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 141,054 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 75,731 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 186,544 |
| Name a Valid European Country #2 | 0 | - | 4.93 | 83,358 |
| Countries that Border Poland | 0 | - | 4.99 | 157,644 |
| Russia Country Quiz | 0 | - | 4.84 | 102,323 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.94 | 75,461 |
| Countries With the Most Russian Speakers | 0 | - | 4.94 | 55,359 |
| Countries that Border Hungary | 0 | - | 4.98 | 95,768 |
| Countries Bordering Serbia | 0 | - | 4.95 | 82,363 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.48 | 35,692 |
| German Inventions | 0 | - | 3.89 | 29,495 |
| Embarrassing Chapters in German History | 0 | - | 3.42 | 11,639 |
| Roman to Greek God | 0 | - | 4.52 | 112,778 |
| Italian History A-Z | 0 | - | 4.11 | 8,788 |
| Luxembourg Country Quiz | 0 | - | 4.74 | 29,613 |
| Countries that Beat the Netherlands | 0 | - | 4.57 | 33,184 |
| Countries Closest to Iceland | 0 | - | 4.87 | 62,070 |
| History of Spain Quiz | 0 | - | 4.33 | 19,488 |
| Geography of the Spanish Empire | 0 | - | 4.47 | 34,935 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 65,477 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,500 |
| Wonderwall Lyrics | 0 | - | 4.22 | 68,326 |
