| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,151 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,361 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,248 |
| Counties of England | 0 | - | 4.97 | 798,306 |
| History of Italy | 0 | - | 4.55 | 32,037 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,286 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,930 |
| Europe Map Quiz | 0 | - | 5.00 | 4,768,757 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,645 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,035 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,985 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,243 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,068 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,718 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,057 |
| States of Germany | 0 | - | 4.95 | 152,993 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,218 |
| Regions of Italy | 0 | - | 4.92 | 76,161 |
| History of The Netherlands | 0 | - | 4.46 | 17,468 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,251 |
| 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 | 17,733 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,552 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,464 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,761 |
| History of Austria | 0 | - | 4.70 | 17,892 |
| Geography of the French Empire | 0 | - | 4.45 | 27,147 |
| 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 | 503,605 |
| History of France | 0 | - | 4.59 | 57,216 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,437 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,389 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,619 |
| Geography of the British Empire | 0 | - | 4.48 | 39,728 |
| Malta Country Quiz | 0 | - | 4.81 | 31,099 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,415 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,867 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,575 |
| The Only European Country ... | 0 | - | 4.91 | 217,211 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,457 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,480 |
| 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 | 112,095 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,621 |
| Roman Emperors | 0 | - | 4.95 | 120,300 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,253 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,247,268 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,249 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,848 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,366 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,183 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,315 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,075 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,612 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,491 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,344 |
| Slavic Countries | 0 | - | 4.96 | 111,823 |
| French History Multiple Choice | 0 | - | 4.55 | 33,104 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,497 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,430 |
| History of Germany | 0 | - | 4.39 | 52,880 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,361 |
| 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 | 357,630 |
| Regions of France | 0 | - | 4.72 | 121,106 |
| France Immigration by Country | 0 | - | 4.70 | 76,641 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,115 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,607 |
| 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 | 103,383 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,674 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,003 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,762 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,604 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,936 |
| Monarchies of Europe | 0 | - | 4.90 | 98,287 |
| European Countries with One Border | 0 | - | 4.97 | 183,034 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,811 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 80,335 |
| 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 | 74,513 |
| 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 | 80,614 |
| 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 | 308,043 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,355 |
| Champions League Winners | 0 | - | 4.91 | 1,009,040 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,028 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,256 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,179 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,745 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,225 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,478 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,749 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,951 |
| Russia Country Quiz | 0 | - | 4.83 | 114,643 |
| Countries That Border Russia | 0 | - | 4.98 | 462,571 |
| 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 | 167,040 |
| Departments of France | 0 | - | 4.93 | 54,372 |
| Countries Bordering France | 0 | - | 4.83 | 403,311 |
| Germany Country Quiz | 0 | - | 4.83 | 158,100 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,543 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,377 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,574 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,239 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,598 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,714 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,063 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,910 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,900 |
| Former Dominions of the British Empire | 0 | - | 4.27 | 24,205 |
| England or Wales? | 0 | - | 4.94 | 45,767 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,847 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,273 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,669 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,442 |
| 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 | 31,942 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,821 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,383 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,393 |
| Canary Islands | 0 | - | 4.62 | 17,489 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,795 |
| 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 | 25,337 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,911 |
| Geography of Scotland | 0 | - | 4.63 | 21,645 |
| Medieval English History | 0 | - | 4.53 | 43,559 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,705,742 |
| 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 | 138,478 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,582 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,293 |
| Countries that Border Poland | 0 | - | 4.99 | 172,524 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,941 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,343 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,371 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,913 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,865 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,606 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,835 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,588 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,939 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,254 |
| Geography of Germany | 0 | - | 4.35 | 17,200 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,184 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,809 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,697 |
| Counties of Ireland | 0 | - | 4.92 | 195,857 |
| Italian Inventions | 0 | - | 3.81 | 18,449 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,990 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,252 |
| 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 | 58,376 |
| 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 | 227,266 |
| British to American Word Translation | 0 | - | 3.74 | 255,146 |
| 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 | 131,121 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,833 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,742 |
| 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 | 439,807 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,768 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,951 |
| Bridges of London | 0 | - | 4.17 | 10,118 |
| British Sport Trivia | 0 | - | 4.37 | 20,479 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,363 |
| Famous Welsh People | 0 | - | 4.31 | 11,553 |
| Liechtenstein Country Quiz | 0 | - | 4.64 | 27,118 |
| San Marino Country Quiz | 0 | - | 4.73 | 29,020 |
