| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,891 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,501 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,062 |
| Counties of England | 0 | - | 4.97 | 794,474 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,862 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,844 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,091 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,241 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,675 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,569 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,086 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,491 |
| States of Germany | 0 | - | 4.96 | 151,765 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,851 |
| Regions of Italy | 0 | - | 4.92 | 75,500 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,766 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,594 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,953 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,512 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,272 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,380 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,392 |
| Departments of France | 0 | - | 4.93 | 53,719 |
| Germany Country Quiz | 0 | - | 4.82 | 157,518 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,841 |
| Italy Country Quiz | 0 | - | 4.82 | 123,152 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,064 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,781 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,511 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,637 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,328 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,169 |
| England or Wales? | 0 | - | 4.94 | 45,588 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,352 |
| The Vikings! | 0 | - | 4.46 | 28,316 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,018 |
| Name the English Monarchs | 0 | - | 4.91 | 501,276 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,303 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,273 |
| Geography of the British Empire | 0 | - | 4.48 | 39,627 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,608 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,904 |
| Name that Greek Letter | 0 | - | 4.93 | 323,028 |
| Malta Country Quiz | 0 | - | 4.81 | 30,991 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,448 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,867 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,756 |
| The Only European Country ... | 0 | - | 4.91 | 215,883 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,698 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,925 |
| The Trojan War | 0 | - | 4.83 | 39,637 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,874 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,494 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,398 |
| Roman Emperors | 0 | - | 4.95 | 119,623 |
| History of The Netherlands | 0 | - | 4.46 | 17,403 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,349 |
| Medieval English History | 0 | - | 4.53 | 43,450 |
| History of Russia Quiz | 0 | - | 4.49 | 31,878 |
| French History Multiple Choice | 0 | - | 4.55 | 32,994 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,448 |
| History of Italy | 0 | - | 4.55 | 31,930 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,606 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,155 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,783 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,092 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,923 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,180 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,041 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,288 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,827 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,386 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,931 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,064 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,951 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,904 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,446 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,951 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,686 |
| Slavic Countries | 0 | - | 4.96 | 111,450 |
| Regions of France | 0 | - | 4.75 | 120,352 |
| France Immigration by Country | 0 | - | 4.70 | 76,375 |
| History of Germany | 0 | - | 4.39 | 52,771 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,846 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,415 |
| Ancient Greek Words | 0 | - | 4.93 | 111,301 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,201 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,229 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,039 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,573 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,734 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,126 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,016 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,642 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,204 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,864 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,467 |
| Monarchies of Europe | 0 | - | 4.90 | 97,915 |
| European Countries with One Border | 0 | - | 4.97 | 182,463 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,270 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,857 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,197 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,695 |
| French Inventions | 0 | - | 4.08 | 13,889 |
| History of Paris | 0 | - | 4.24 | 13,634 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,480 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,084 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,974 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,982 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,939 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,981 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,218 |
| History of Scotland | 0 | - | 4.51 | 21,070 |
| Champions League Winners | 0 | - | 4.92 | 1,003,435 |
| Countries That Border Russia | 0 | - | 4.98 | 461,008 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| Austria Country Quiz | 0 | - | 4.57 | 59,616 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,631 |
| France Country Quiz | 0 | - | 4.70 | 134,713 |
| Geography of the French Empire | 0 | - | 4.45 | 27,018 |
| The French Revolution | 0 | - | 4.46 | 23,894 |
| Countries Bordering France | 0 | - | 4.83 | 401,777 |
| Kings of France Quiz | 0 | - | 4.20 | 32,677 |
| History of France | 0 | - | 4.59 | 56,796 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,458 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,515 |
| Greece Country Quiz | 0 | - | 4.74 | 66,107 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,679 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,424 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,358 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,366 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,722 |
| The Portuguese Empire | 0 | - | 4.58 | 12,045 |
| Spain Country Quiz | 0 | - | 4.45 | 128,260 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,239 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,548 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,671 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,292 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,655 |
| Counties of Wales | 0 | - | 4.63 | 39,180 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,576 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,838 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,740 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,490 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,221 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,585 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,778 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,278 |
| Russia Country Quiz | 0 | - | 4.85 | 114,241 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,215 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,279 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,347 |
| History of Ireland | 0 | - | 4.39 | 31,093 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,235 |
| Canary Islands | 0 | - | 4.62 | 17,458 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,674 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,574 |
| British Spellings | 0 | - | 4.06 | 99,398 |
| British Groups of Things | 0 | - | 4.25 | 82,826 |
| British Acronyms | 0 | - | 4.39 | 45,751 |
| UK Immigration by Country | 0 | - | 4.94 | 140,623 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,012 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,360 |
| Biggest Immigrant Groups by Decade in the UK | 0 | - | 4.63 | 24,988 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,649 |
| Geography of Scotland | 0 | - | 4.63 | 21,583 |
| Former Dominions of the British Empire | 0 | - | 4.27 | 24,157 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,674 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,686,787 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,470 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,562 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,027 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,263 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,310 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,328 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,720 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,140 |
| Countries that Border Poland | 0 | - | 4.99 | 172,018 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,695 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,114 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,073 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,790 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,727 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,223 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,703 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,166 |
| 20 Questions About France | 0 | - | 4.11 | 32,387 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,776 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,075 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,492 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,992 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,436 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,598 |
| Counties of Ireland | 0 | - | 4.92 | 194,536 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,735 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,665 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,683 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,844 |
| Roman Names for Places | 0 | - | 4.62 | 58,160 |
