| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,151 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,363 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,249 |
| Counties of England | 0 | - | 4.97 | 798,315 |
| History of Italy | 0 | - | 4.55 | 32,039 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,286 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,932 |
| Europe Map Quiz | 0 | - | 5.00 | 4,768,792 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,646 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,041 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,986 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,245 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,071 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,719 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,059 |
| States of Germany | 0 | - | 4.95 | 153,003 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,220 |
| Regions of Italy | 0 | - | 4.92 | 76,164 |
| History of The Netherlands | 0 | - | 4.46 | 17,468 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,252 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,367 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,103 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,734 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,552 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,465 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,775 |
| History of Austria | 0 | - | 4.70 | 17,892 |
| Geography of the French Empire | 0 | - | 4.45 | 27,148 |
| The French Revolution | 0 | - | 4.47 | 24,046 |
| The Vikings! | 0 | - | 4.46 | 28,366 |
| The Portuguese Empire | 0 | - | 4.58 | 12,080 |
| Name the English Monarchs | 0 | - | 4.91 | 503,608 |
| History of France | 0 | - | 4.59 | 57,220 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,439 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,391 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,621 |
| Geography of the British Empire | 0 | - | 4.48 | 39,729 |
| Malta Country Quiz | 0 | - | 4.81 | 31,099 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,419 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,877 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,580 |
| The Only European Country ... | 0 | - | 4.91 | 217,215 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,458 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,489 |
| Name that Greek Letter | 0 | - | 4.93 | 324,077 |
| History of Russia Quiz | 0 | - | 4.47 | 31,943 |
| The Trojan War | 0 | - | 4.83 | 39,778 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,100 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,621 |
| Roman Emperors | 0 | - | 4.95 | 120,305 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,254 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,247,297 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,251 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,849 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,368 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,192 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,315 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,078 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,616 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,492 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,344 |
| Slavic Countries | 0 | - | 4.96 | 111,824 |
| French History Multiple Choice | 0 | - | 4.55 | 33,106 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,497 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,431 |
| History of Germany | 0 | - | 4.39 | 52,881 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,368 |
| History of Spain | 0 | - | 4.23 | 21,111 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,775 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,179 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,652 |
| Regions of France | 0 | - | 4.72 | 121,114 |
| France Immigration by Country | 0 | - | 4.70 | 76,643 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,115 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,611 |
| Ancient Greek Words | 0 | - | 4.93 | 111,830 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,322 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,384 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,674 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,004 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,767 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,605 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,937 |
| Monarchies of Europe | 0 | - | 4.90 | 98,288 |
| European Countries with One Border | 0 | - | 4.97 | 183,039 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,812 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 80,613 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,827 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,034 |
| French Inventions | 0 | - | 4.10 | 13,905 |
| History of Paris | 0 | - | 4.24 | 13,657 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,515 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,121 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,236 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,615 |
| American to British Word Translation | 0 | - | 4.14 | 139,244 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,933 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,045 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,355 |
| Champions League Winners | 0 | - | 4.91 | 1,009,080 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,031 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,258 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,181 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,751 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,233 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,482 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,761 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,952 |
| Russia Country Quiz | 0 | - | 4.83 | 114,643 |
| Countries That Border Russia | 0 | - | 4.98 | 462,579 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,437 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,399 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,749 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,046 |
| Departments of France | 0 | - | 4.93 | 54,377 |
| Countries Bordering France | 0 | - | 4.83 | 403,316 |
| Germany Country Quiz | 0 | - | 4.83 | 158,101 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,545 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,383 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,575 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,248 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,599 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,720 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,064 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,918 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,904 |
| Former Dominions of the British Empire | 0 | - | 4.27 | 24,205 |
| England or Wales? | 0 | - | 4.94 | 45,771 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,850 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,287 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,669 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,451 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,371 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,057 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,943 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,821 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,394 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,394 |
| Canary Islands | 0 | - | 4.62 | 17,489 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,796 |
| British Spellings | 0 | - | 4.06 | 99,492 |
| British Groups of Things | 0 | - | 4.25 | 82,900 |
| British Acronyms | 0 | - | 4.40 | 45,832 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,051 |
| Biggest Immigrant Groups by Decade in the UK | 0 | - | 4.63 | 25,338 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,913 |
| Geography of Scotland | 0 | - | 4.63 | 21,645 |
| Medieval English History | 0 | - | 4.53 | 43,559 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,705,765 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,996 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,167 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,479 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,583 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,295 |
| Countries that Border Poland | 0 | - | 4.99 | 172,527 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,942 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,345 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,374 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,914 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,865 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,607 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,836 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,589 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,942 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,255 |
| Geography of Germany | 0 | - | 4.35 | 17,201 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,185 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,814 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,697 |
| Counties of Ireland | 0 | - | 4.92 | 195,859 |
| Italian Inventions | 0 | - | 3.81 | 18,449 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,991 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,253 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,778 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,982 |
| Roman Names for Places | 0 | - | 4.62 | 58,377 |
| Byzantine History | 0 | - | 4.91 | 28,906 |
| Byzantine Emperors | 0 | - | 4.92 | 14,330 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,211 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,267 |
| British to American Word Translation | 0 | - | 3.74 | 255,147 |
| British Foods by Description | 0 | - | 3.94 | 48,337 |
| British and American Word Differences | 0 | - | 2.63 | 46,892 |
| English Inventions #1 | 0 | - | 3.15 | 23,570 |
| English Inventions #2 | 0 | - | 3.95 | 8,707 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,608 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,128 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,833 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,743 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,196 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,991 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,816 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,769 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,952 |
| Bridges of London | 0 | - | 4.17 | 10,118 |
| British Sport Trivia | 0 | - | 4.37 | 20,479 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,375 |
| Famous Welsh People | 0 | - | 4.31 | 11,554 |
| Liechtenstein Country Quiz | 0 | - | 4.64 | 27,118 |
| San Marino Country Quiz | 0 | - | 4.73 | 29,020 |
