| The Trojan War | 0 | - | 4.81 | 35,588 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 578,897 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,223 |
| Roman Emperors | 0 | - | 4.95 | 94,565 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,071 |
| Name that Greek Letter | 0 | - | 4.94 | 293,817 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.80 | 83,809 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.58 | 54,872 |
| Ancient Greece - Multiple Choice | 0 | - | 4.53 | 38,353 |
| English Monarchs Quiz | 0 | - | 4.91 | 442,316 |
| Geography of Ancient Greece | 0 | - | 4.76 | 29,571 |
| The Life of Alexander the Great | 0 | - | 4.51 | 17,375 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,163 |
| Geography of the Roman Empire | 0 | - | 4.58 | 47,962 |
| Roman Names for Places | 0 | - | 4.66 | 41,004 |
| Ancient Greek Inventions | 0 | - | 4.17 | 15,471 |
| Medieval English History | 0 | - | 4.52 | 40,521 |
| Olympian Gods Quiz | 0 | - | 4.96 | 454,504 |
| Seven Hills of Rome | 0 | - | 4.68 | 8,486 |
| Houses of British Monarchs | 0 | - | 4.50 | 51,649 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 51,202 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,110 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 61,478 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 47,896 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,583 |
| Countries Bordering France | 0 | - | 4.87 | 354,603 |
| Countries Bordering Germany | 0 | - | 4.99 | 338,386 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,026 |
| Ancient Greek Words | 0 | - | 4.90 | 96,024 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,356 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 85,165 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 167,838 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,121 |
| England or Wales? | 0 | - | 4.93 | 39,776 |
| Europe Map Quiz | 0 | - | 5.00 | 4,248,677 |
| France Cities Map Quiz | 0 | - | 4.95 | 146,597 |
| Germany Country Quiz | 0 | - | 4.83 | 138,687 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 104,926 |
| Italy Country Quiz | 0 | - | 4.81 | 107,426 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 132,085 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 125,870 |
| Countries Closest to Spain | 0 | - | 4.95 | 204,181 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 101,787 |
| History of Scotland | 0 | - | 4.49 | 19,492 |
| World Capitals Closest to London | 0 | - | 4.90 | 92,849 |
| 50 Busiest Air Routes from London | 0 | - | 4.88 | 84,695 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,388 |
| Countries Bordering Austria | 0 | - | 4.97 | 109,396 |
| Countries that Visit France the Most | 0 | - | 4.84 | 39,473 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 65,851 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 51,145 |
| Greece Country Quiz | 0 | - | 4.72 | 59,153 |
| Ancient Greece A-Z | 0 | - | 4.63 | 20,492 |
| Countries Bordering Italy | 0 | - | 4.92 | 78,493 |
| Countries Closest to Italy | 0 | - | 4.97 | 177,373 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,581 |
| Greenland Country Quiz | 0 | - | 4.82 | 31,996 |
| Countries that Beat Portugal | 0 | - | 4.82 | 35,147 |
| Countries that Beat Spain | 0 | - | 4.96 | 55,319 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 220,714 |
| English Royal Consorts | 0 | - | 4.27 | 34,324 |
| The Reign of Queen Elizabeth I | 0 | - | 4.50 | 29,484 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 381,460 |
| Andorra Country Quiz | 0 | - | 4.87 | 27,529 |
| The Reign of Napoleon | 0 | - | 4.53 | 35,886 |
| Countries that Beat Germany | 0 | - | 4.87 | 69,415 |
| Figures from Greek Mythology | 0 | - | 4.92 | 168,250 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,619 |
| Countries that Beat Italy | 0 | - | 4.87 | 44,642 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,279 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 333,497 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 90,634 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.82 | 38,894 |
| The Only European Country ... | 0 | - | 4.94 | 175,630 |
| French Geography Quiz #1 | 0 | - | 4.86 | 30,726 |
| The Life of Julius Caesar | 0 | - | 4.46 | 31,955 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 31,915 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 64,903 |
| Counties of England | 0 | - | 4.96 | 681,653 |
| Invasions of Great Britain | 0 | - | 4.48 | 55,107 |
| Oldest Cities in the United Kingdom | 0 | - | 4.34 | 21,952 |
| Embarrassing Chapters in British History | 0 | - | 4.28 | 30,113 |
| History of London | 0 | - | 4.31 | 24,145 |
| British History Quiz for Dummies | 0 | - | 4.54 | 61,064 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,030,269 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,169,017 |
| Countries that Beat Greece | 0 | - | 4.51 | 42,676 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 395,835 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 47,914 |
| UK Cities Map Quiz | 0 | - | 4.94 | 430,303 |
| The Reign of Henry VIII | 0 | - | 4.24 | 26,142 |
| British History Multiple Choice #2 | 0 | - | 4.40 | 28,438 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.29 | 23,245 |
| Champions League Winners | 0 | - | 4.90 | 836,236 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 159,417 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 137,265 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 183,100 |
| European Landmarks Map Quiz | 0 | - | 4.98 | 76,104 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 282,823 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 113,053 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 73,611 |
| Eastern Europe Map Quiz | 0 | - | 4.88 | 114,609 |
| Slavic Countries | 0 | - | 4.96 | 99,689 |
| Kings of France Quiz | 0 | - | 4.14 | 29,927 |
| Famous Ancient Romans | 0 | - | 4.72 | 73,879 |
| Monaco Country Quiz | 0 | - | 4.45 | 37,179 |
| Netherlands Country Quiz | 0 | - | 4.56 | 72,232 |
| Nordic Cities Map Quiz | 0 | - | 4.72 | 84,732 |
| The Vikings! | 0 | - | 4.44 | 26,997 |
| Sweden Immigration by Country | 0 | - | 4.66 | 41,858 |
| Portugal Country Quiz | 0 | - | 4.67 | 64,126 |
| The Portuguese Empire | 0 | - | 4.54 | 11,280 |
| Spain Country Quiz | 0 | - | 4.44 | 113,520 |
| Regions of Spain Quiz | 0 | - | 4.85 | 93,328 |
| Switzerland Country Quiz | 0 | - | 4.53 | 56,536 |
| Cantons of Switzerland | 0 | - | 4.96 | 39,680 |
| Parts of the United Kingdom | 0 | - | 4.88 | 82,854 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,121 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.50 | 36,302 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,456 |
| Countries the UK Declared War On | 0 | - | 4.57 | 110,774 |
| Counties of Wales | 0 | - | 4.60 | 33,119 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 262,740 |
| European Diaspora - Top 11 Countries | 0 | - | 4.91 | 82,667 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 119,305 |
| Three Band Flags of Europe | 0 | - | 4.97 | 159,308 |
| Pixelated Europe Map | 0 | - | 4.89 | 108,341 |
| Monarchies of Europe | 0 | - | 4.88 | 86,096 |
| European Countries with One Border | 0 | - | 4.96 | 148,934 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 143,207 |
| History of Russia Quiz | 0 | - | 4.48 | 29,716 |
| Federal Subjects of Russia | 0 | - | 4.95 | 109,614 |
| Countries That Border Russia | 0 | - | 4.98 | 422,860 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 100,843 |
| History of Austria | 0 | - | 4.68 | 16,261 |
| Austria Country Quiz | 0 | - | 4.55 | 53,599 |
| Belgium Country Quiz | 0 | - | 4.66 | 63,802 |
| France Country Quiz | 0 | - | 4.74 | 119,733 |
| Regions of France Map Quiz | 0 | - | 4.96 | 126,145 |
| Geography of the French Empire | 0 | - | 4.50 | 24,970 |
| The French Revolution | 0 | - | 4.44 | 21,778 |
| History of France Quiz | 0 | - | 4.55 | 39,450 |
| French History A-Z | 0 | - | 4.14 | 12,434 |
| States of Germany Map Quiz | 0 | - | 4.91 | 119,329 |
| States of Germany | 0 | - | 4.94 | 121,201 |
| Germany Immigration by Country | 0 | - | 4.90 | 68,762 |
| Counties of Ireland | 0 | - | 4.89 | 156,909 |
| History of Ireland Quiz | 0 | - | 4.43 | 18,757 |
| Regions of Italy | 0 | - | 4.88 | 59,375 |
| History of Italy | 0 | - | 4.49 | 29,627 |
| Roman History by Picture | 0 | - | 4.44 | 24,396 |
| Byzantine History | 0 | - | 4.87 | 26,045 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,262 |
| History of The Netherlands | 0 | - | 4.42 | 15,618 |
| Denmark Country Quiz | 0 | - | 4.79 | 69,010 |
| Finland Country Quiz | 0 | - | 4.48 | 52,372 |
| Norway Country Quiz | 0 | - | 4.42 | 56,105 |
| Iceland Country Quiz | 0 | - | 4.72 | 38,390 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,721 |
| Spanish History A-Z | 0 | - | 4.29 | 11,211 |
| Countries Bordering Spain | 0 | - | 4.50 | 63,906 |
| UK Immigration by Country | 0 | - | 4.95 | 123,938 |
| Arthurian Legend | 0 | - | 4.34 | 24,210 |
| United Kingdom Country Quiz | 0 | - | 4.93 | 116,858 |
| British Monopoly Board | 0 | - | 4.50 | 38,668 |
| Countries that Visit the UK the Most | 0 | - | 4.84 | 61,507 |
| All Champions League Teams Ever | 0 | - | 4.89 | 102,130 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,243 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,679 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 179,823 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,680 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 65,691 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 127,351 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.93 | 55,331 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 197,860 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 243,319 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 140,802 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 75,645 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 186,249 |
| Name a Valid European Country #2 | 0 | - | 4.93 | 83,236 |
| Countries that Border Poland | 0 | - | 4.99 | 157,361 |
| Russia Country Quiz | 0 | - | 4.84 | 102,165 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.94 | 75,405 |
| Countries With the Most Russian Speakers | 0 | - | 4.94 | 55,276 |
| Countries that Border Hungary | 0 | - | 4.98 | 95,715 |
| Countries Bordering Serbia | 0 | - | 4.95 | 82,251 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.48 | 35,663 |
| German Inventions | 0 | - | 3.89 | 29,492 |
| Embarrassing Chapters in German History | 0 | - | 3.42 | 11,633 |
| Roman to Greek God | 0 | - | 4.52 | 112,677 |
| Italian History A-Z | 0 | - | 4.11 | 8,780 |
| Luxembourg Country Quiz | 0 | - | 4.74 | 29,580 |
| Countries that Beat the Netherlands | 0 | - | 4.57 | 33,152 |
| Countries Closest to Iceland | 0 | - | 4.87 | 61,969 |
| History of Spain Quiz | 0 | - | 4.33 | 19,478 |
| Geography of the Spanish Empire | 0 | - | 4.47 | 34,800 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 65,431 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,391 |
| Wonderwall Lyrics | 0 | - | 4.22 | 68,253 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 24,712 |
