| Regions of Italy | 0 | - | 4.92 | 76,199 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,624 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,608 |
| England or Wales? | 0 | - | 4.94 | 45,784 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,269 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 42,039 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,475 |
| French History Multiple Choice | 0 | - | 4.55 | 33,116 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,200 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,996 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,170 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,638 |
| Roman Emperors | 0 | - | 4.95 | 120,341 |
| Counties of England | 0 | - | 4.97 | 798,602 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,214 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,692 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,196 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,042 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,284 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,107 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,766 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,114 |
| States of Germany | 0 | - | 4.95 | 153,091 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,252 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,736 |
| History of Italy | 0 | - | 4.55 | 32,046 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,393 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,323 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,380 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,128 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,759 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,018 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,564 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,757 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,091 |
| Departments of France | 0 | - | 4.93 | 54,412 |
| Germany Country Quiz | 0 | - | 4.83 | 158,139 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,584 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,280 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,854 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,262 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,091 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,142 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,939 |
| Name the English Monarchs | 0 | - | 4.91 | 503,765 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,912 |
| Italy Country Quiz | 0 | - | 4.77 | 123,573 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,007 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,298 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,364 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,398 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,643 |
| Geography of the British Empire | 0 | - | 4.48 | 39,733 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,064 |
| The Trojan War | 0 | - | 4.83 | 39,789 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,945 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,671 |
| Name that Greek Letter | 0 | - | 4.93 | 324,113 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,183 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,626 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,123 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,402 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,628 |
| Medieval English History | 0 | - | 4.53 | 43,564 |
| Malta Country Quiz | 0 | - | 4.81 | 31,108 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,046 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,494 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,964 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,625 |
| The Only European Country ... | 0 | - | 4.91 | 217,308 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,517 |
| History of Russia Quiz | 0 | - | 4.47 | 31,945 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,447 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,784 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,986 |
| Roman Names for Places | 0 | - | 4.62 | 58,389 |
| Byzantine History | 0 | - | 4.91 | 28,908 |
| Byzantine Emperors | 0 | - | 4.92 | 14,348 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,716 |
| History of The Netherlands | 0 | - | 4.46 | 17,475 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,292 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,945 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,266 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,540 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,247,933 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,468 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,887 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,400 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,291 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,334 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,141 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,755 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 112,195 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,527 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,366 |
| Slavic Countries | 0 | - | 4.96 | 111,855 |
| History of Germany | 0 | - | 4.39 | 52,887 |
| Ancient Greek Words | 0 | - | 4.93 | 111,866 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,776 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,182 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,933 |
| Regions of France | 0 | - | 4.72 | 121,168 |
| France Immigration by Country | 0 | - | 4.70 | 76,660 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,552 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,130 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,549 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,477 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,335 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,066 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,412 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,682 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,116 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,297 |
| History of Scotland | 0 | - | 4.51 | 21,123 |
| Champions League Winners | 0 | - | 4.91 | 1,009,483 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,687 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,022 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,808 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,653 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,962 |
| Monarchies of Europe | 0 | - | 4.90 | 98,325 |
| European Countries with One Border | 0 | - | 4.97 | 183,079 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,859 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 84,809 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,926 |
| Countries That Border Russia | 0 | - | 4.98 | 462,723 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,065 |
| History of Austria | 0 | - | 4.70 | 17,900 |
| Austria Country Quiz | 0 | - | 4.57 | 59,827 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,918 |
| France Country Quiz | 0 | - | 4.70 | 135,151 |
| French Inventions | 0 | - | 4.10 | 13,905 |
| Geography of the French Empire | 0 | - | 4.45 | 27,151 |
| The French Revolution | 0 | - | 4.47 | 24,053 |
| Countries Bordering France | 0 | - | 4.83 | 403,444 |
| History of Paris | 0 | - | 4.24 | 13,657 |
| Kings of France Quiz | 0 | - | 4.20 | 32,809 |
| History of France | 0 | - | 4.59 | 57,247 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,555 |
| Greece Country Quiz | 0 | - | 4.74 | 66,352 |
| Italian Inventions | 0 | - | 3.81 | 18,453 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,202 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,816 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,559 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,633 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,532 |
| The Vikings! | 0 | - | 4.46 | 28,368 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,203 |
| Sweden True or False? | 0 | - | 4.53 | 40,375 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,001 |
| The Portuguese Empire | 0 | - | 4.58 | 12,081 |
| Spain Country Quiz | 0 | - | 4.44 | 128,753 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,444 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,104 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,142 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,763 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,412 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,740 |
| Counties of Wales | 0 | - | 4.63 | 39,373 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,060 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,280 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,214 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,829 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,303 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,558 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,885 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,995 |
| Russia Country Quiz | 0 | - | 4.83 | 114,672 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,451 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,408 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,831 |
| History of Ireland | 0 | - | 4.39 | 31,268 |
| Ireland True or False? | 0 | - | 4.57 | 49,665 |
| Italian Foods | 0 | - | 4.30 | 72,915 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,120 |
| Canary Islands | 0 | - | 4.62 | 17,490 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,230 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,811 |
| British Spellings | 0 | - | 4.06 | 99,499 |
| British Groups of Things | 0 | - | 4.25 | 82,903 |
| British Acronyms | 0 | - | 4.40 | 45,844 |
| UK Immigration by Country | 0 | - | 4.94 | 141,125 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,052 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,124 |
| Biggest Immigrant Groups by Decade in the UK | 0 | - | 4.63 | 25,363 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,928 |
| Geography of Scotland | 0 | - | 4.63 | 21,651 |
| Former Dominions of the British Empire | 0 | - | 4.27 | 24,208 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,936 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,706,931 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,036 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,176 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,671 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,494 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,527 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,601 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,329 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,388 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,386 |
| Countries that Border Poland | 0 | - | 4.99 | 172,568 |
