| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,294 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,077 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,416 |
| Counties of England | 0 | - | 4.97 | 788,434 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,794 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,310 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,260 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,003 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,920 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,015 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,568 |
| States of Germany | 0 | - | 4.96 | 149,815 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,920 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,486 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,741 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,753 |
| Regions of Italy | 0 | - | 4.92 | 74,605 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,741 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,152 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,063 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,848 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,913 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,394 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,101 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,074 |
| Departments of France | 0 | - | 4.93 | 52,681 |
| Germany Country Quiz | 0 | - | 4.82 | 156,415 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,066 |
| Italy Country Quiz | 0 | - | 4.82 | 122,090 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,264 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 150,992 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,343 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,878 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,529 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,121 |
| Name the English Monarchs | 0 | - | 4.92 | 497,434 |
| England or Wales? | 0 | - | 4.94 | 45,283 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,902 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,154 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,709 |
| Geography of the British Empire | 0 | - | 4.48 | 39,463 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,360 |
| The Trojan War | 0 | - | 4.83 | 39,400 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,275 |
| Name that Greek Letter | 0 | - | 4.94 | 321,452 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,371 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,982 |
| Roman Emperors | 0 | - | 4.95 | 118,313 |
| Medieval English History | 0 | - | 4.53 | 43,293 |
| Malta Country Quiz | 0 | - | 4.81 | 30,795 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,401 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,759 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,092 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,360 |
| The Only European Country ... | 0 | - | 4.91 | 213,533 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,345 |
| History of Russia Quiz | 0 | - | 4.49 | 31,773 |
| French History Multiple Choice | 0 | - | 4.55 | 32,856 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,407 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,084 |
| History of Italy | 0 | - | 4.55 | 31,800 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,465 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,963 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,357 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,936 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,815 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,079 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,356 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,443 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,703 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,595 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,206 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,073 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,408 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,587 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,579 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,164 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,079 |
| Slavic Countries | 0 | - | 4.96 | 110,778 |
| History of Germany | 0 | - | 4.39 | 52,593 |
| Olympian Gods Quiz | 0 | - | 4.96 | 494,962 |
| Ancient Greek Words | 0 | - | 4.92 | 110,554 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,576 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,684 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,067 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,242 |
| Regions of France | 0 | - | 4.78 | 119,046 |
| France Immigration by Country | 0 | - | 4.72 | 75,922 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,348 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,154 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,554 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,738 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,026 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,938 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,869 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,366 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,102 |
| History of Scotland | 0 | - | 4.51 | 20,991 |
| Champions League Winners | 0 | - | 4.92 | 995,214 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,270 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,970 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,235 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,678 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,676 |
| Monarchies of Europe | 0 | - | 4.90 | 97,222 |
| European Countries with One Border | 0 | - | 4.97 | 181,480 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 177,990 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,129 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,633 |
| Countries That Border Russia | 0 | - | 4.98 | 458,586 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,108 |
| History of Austria | 0 | - | 4.70 | 17,738 |
| Austria Country Quiz | 0 | - | 4.57 | 59,285 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,172 |
| France Country Quiz | 0 | - | 4.70 | 133,734 |
| French Inventions | 0 | - | 4.08 | 13,859 |
| Geography of the French Empire | 0 | - | 4.48 | 26,915 |
| The French Revolution | 0 | - | 4.46 | 23,752 |
| Countries Bordering France | 0 | - | 4.85 | 396,998 |
| History of Paris | 0 | - | 4.24 | 13,612 |
| Kings of France Quiz | 0 | - | 4.20 | 32,539 |
| History of France | 0 | - | 4.59 | 55,899 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,372 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,740 |
| Greece Country Quiz | 0 | - | 4.74 | 65,708 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,413 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,032 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,449 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,200 |
| Netherlands Country Quiz | 0 | - | 4.50 | 79,908 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,716 |
| The Vikings! | 0 | - | 4.45 | 28,236 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,659 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,281 |
| The Portuguese Empire | 0 | - | 4.54 | 11,980 |
| Spain Country Quiz | 0 | - | 4.45 | 127,499 |
| Switzerland Country Quiz | 0 | - | 4.51 | 62,893 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,962 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,169 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,548 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,154 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,393 |
| Counties of Wales | 0 | - | 4.63 | 38,839 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,724 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,178 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,039 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,262 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,997 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,928 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,341 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,057 |
| Russia Country Quiz | 0 | - | 4.85 | 113,568 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,798 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,002 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,701 |
| History of Ireland | 0 | - | 4.39 | 30,792 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,912 |
| Byzantine History | 0 | - | 4.91 | 28,586 |
| Canary Islands | 0 | - | 4.61 | 17,388 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,681 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,095 |
| British Spellings | 0 | - | 4.07 | 99,189 |
| British Groups of Things | 0 | - | 4.25 | 82,657 |
| British Acronyms | 0 | - | 4.39 | 45,602 |
| UK Immigration by Country | 0 | - | 4.94 | 139,503 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 137,991 |
| Biggest Immigrant Groups by Decade in the UK | 0 | - | 4.62 | 24,375 |
| Geography of Scotland | 0 | - | 4.63 | 21,468 |
| Former Dominions of the British Empire | 0 | - | 4.30 | 24,066 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,304 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,649,354 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,137 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,756 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,596 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,782 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,834 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,752 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,870 |
| Random Point on Land to European Country | 0 | - | 4.93 | 75,959 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,733 |
| Countries that Border Poland | 0 | - | 4.99 | 171,231 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,337 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,793 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,183 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,616 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,587 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,519 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,656 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,492 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,664 |
| 20 Questions About France | 0 | - | 4.11 | 32,329 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,471 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,758 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,549 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,277 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,268 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,071 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,399 |
