| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,230 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,151 |
| Slavic Countries | 0 | - | 4.96 | 111,617 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,980 |
| History of Russia Quiz | 0 | - | 4.47 | 31,913 |
| Europe Map Quiz | 0 | - | 5.00 | 4,761,480 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,157 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 81,361 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,594 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,937 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,819 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,865 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,479 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,074 |
| Name the English Monarchs | 0 | - | 4.91 | 502,414 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,945 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,084 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,814 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,248 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,933 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,361 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,164 |
| The Only European Country ... | 0 | - | 4.91 | 216,502 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,053 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,156 |
| Name that Greek Letter | 0 | - | 4.93 | 323,371 |
| The Trojan War | 0 | - | 4.83 | 39,713 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,783 |
| History of Italy | 0 | - | 4.55 | 31,968 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,509 |
| Roman Emperors | 0 | - | 4.95 | 119,974 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,651 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,220 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,855 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,256 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,243,348 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,274 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,623 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,165 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,604 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,118 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,413 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,550 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,887 |
| Counties of England | 0 | - | 4.97 | 796,313 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,680 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,619 |
| Ancient Greek Words | 0 | - | 4.93 | 111,545 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,919 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,815 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,473 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,241 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,705 |
| Monarchies of Europe | 0 | - | 4.90 | 98,107 |
| European Countries with One Border | 0 | - | 4.97 | 182,725 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,523 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,392 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,037 |
| Geography of Russia | 0 | - | 4.57 | 21,524 |
| History of Austria | 0 | - | 4.70 | 17,859 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,365 |
| Geography of the French Empire | 0 | - | 4.45 | 27,055 |
| The French Revolution | 0 | - | 4.46 | 23,927 |
| History of France | 0 | - | 4.59 | 56,946 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,755 |
| States of Germany | 0 | - | 4.96 | 152,422 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,002 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 74,094 |
| Regions of Italy | 0 | - | 4.92 | 75,828 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,114 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,115 |
| The Vikings! | 0 | - | 4.46 | 28,341 |
| The Portuguese Empire | 0 | - | 4.58 | 12,062 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,904 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,178 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,968 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,345 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,440 |
| Geography of the British Empire | 0 | - | 4.48 | 39,665 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,691 |
| Champions League Winners | 0 | - | 4.92 | 1,006,196 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,813 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,079 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,958 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,133 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,739 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,044 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,805 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,643 |
| Russia Country Quiz | 0 | - | 4.85 | 114,440 |
| Countries That Border Russia | 0 | - | 4.98 | 461,611 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,318 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,331 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,671 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,697 |
| Departments of France | 0 | - | 4.93 | 54,055 |
| Countries Bordering France | 0 | - | 4.83 | 402,432 |
| Germany Country Quiz | 0 | - | 4.82 | 157,798 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,292 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,297 |
| Italy Country Quiz | 0 | - | 4.82 | 123,368 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,310 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,991 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,540 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,942 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,897 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,609 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,530 |
| England or Wales? | 0 | - | 4.94 | 45,670 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,266 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,346 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,654 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,884 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,241 |
| Slavic Languages | 0 | - | 4.68 | 54,347 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,985 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,908 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,861 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,315 |
| History of The Netherlands | 0 | - | 4.46 | 17,429 |
| Medieval English History | 0 | - | 4.53 | 43,501 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,696,378 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,742 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,206 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,096 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,365 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,421 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,006 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,117 |
| Countries that Border Poland | 0 | - | 4.99 | 172,236 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,300 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,828 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,713 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,197 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,863 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,795 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,372 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,762 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,294 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,855 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,164 |
| French History Multiple Choice | 0 | - | 4.55 | 33,030 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,473 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,572 |
| History of Germany | 0 | - | 4.39 | 52,812 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,635 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,650 |
| Counties of Ireland | 0 | - | 4.92 | 195,137 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,847 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,989 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,733 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,914 |
| Roman Names for Places | 0 | - | 4.62 | 58,267 |
| Byzantine History | 0 | - | 4.91 | 28,851 |
| Byzantine Emperors | 0 | - | 4.92 | 13,969 |
| History of Spain | 0 | - | 4.23 | 21,084 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,157 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,913 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,611 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,745 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,784 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,145 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,646 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,137 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,952 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,696 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,624 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,808 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 401,139 |
| Malta Country Quiz | 0 | - | 4.81 | 31,044 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,137 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,426 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,126 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,037 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,121 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,720 |
| Russian History A-Z | 0 | - | 4.38 | 31,689 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,739 |
| Russian Inventions | 0 | - | 4.39 | 12,952 |
| French Inventions | 0 | - | 4.08 | 13,897 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,168 |
| History of Paris | 0 | - | 4.24 | 13,645 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,357 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,016 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,133 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,100 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,464 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,555 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,307 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,913 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,509 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,257 |
| British History A-Z #1 | 0 | - | 4.45 | 46,475 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,654 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,571 |
| History of Scotland | 0 | - | 4.51 | 21,088 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,067 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,155 |
| Australian Capitals | 0 | - | 4.92 | 62,718 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,102 |
