| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,339 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,691 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,647 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,081 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,673 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,487 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,622 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,379 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,174 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,271 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,732 |
| The Only European Country ... | 0 | - | 4.91 | 218,345 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,148 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,711 |
| Name the English Monarchs | 0 | - | 4.91 | 505,384 |
| History of Russia Quiz | 0 | - | 4.47 | 31,985 |
| History of Italy | 0 | - | 4.55 | 32,107 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,782 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,379 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,039 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,283 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,833 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,211 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,609 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,204 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,932 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,939 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,641 |
| Slavic Countries | 0 | - | 4.96 | 112,184 |
| The Trojan War | 0 | - | 4.83 | 39,930 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,698 |
| Name that Greek Letter | 0 | - | 4.93 | 324,663 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,672 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,478 |
| Roman Emperors | 0 | - | 4.95 | 120,882 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,765 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,624 |
| Counties of England | 0 | - | 4.97 | 801,255 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,074 |
| History of Austria | 0 | - | 4.70 | 17,951 |
| Geography of the French Empire | 0 | - | 4.45 | 27,194 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,542 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,126 |
| The Vikings! | 0 | - | 4.46 | 28,391 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,558 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,707 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,320 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,233 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,201 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,281 |
| Monarchies of Europe | 0 | - | 4.90 | 98,643 |
| European Countries with One Border | 0 | - | 4.97 | 183,505 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,245 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,269 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,913 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,323 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,361 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,546 |
| States of Germany | 0 | - | 4.95 | 153,989 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,532 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,964 |
| Regions of Italy | 0 | - | 4.92 | 76,685 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,649 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,002 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,607 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,377 |
| Champions League Winners | 0 | - | 4.92 | 1,013,152 |
| History of France | 0 | - | 4.61 | 57,463 |
| Ancient Greek Words | 0 | - | 4.93 | 112,239 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,435 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,112 |
| Geography of the British Empire | 0 | - | 4.48 | 39,813 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,616 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,562 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,260 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,126 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,437 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,423 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,896 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,717 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,602 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,561 |
| Russia Country Quiz | 0 | - | 4.83 | 115,140 |
| Countries That Border Russia | 0 | - | 4.98 | 463,901 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,618 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,504 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,874 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,511 |
| Departments of France | 0 | - | 4.93 | 54,854 |
| Countries Bordering France | 0 | - | 4.83 | 404,345 |
| Germany Country Quiz | 0 | - | 4.83 | 158,564 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,898 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,326 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,016 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,871 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,702 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,410 |
| History of The Netherlands | 0 | - | 4.46 | 17,529 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,319 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,584 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,462 |
| England or Wales? | 0 | - | 4.94 | 45,893 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,628 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,299 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,334 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,036 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,172 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,003 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,560 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,057 |
| History of Spain | 0 | - | 4.23 | 21,145 |
| Medieval English History | 0 | - | 4.53 | 43,618 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,307 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,569 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,286 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,608 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,633 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,627 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,781 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,794 |
| Countries that Border Poland | 0 | - | 4.99 | 172,942 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,133 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,278 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,889 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,994 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,972 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,911 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,833 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,069 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,386 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,083 |
| History of Germany | 0 | - | 4.39 | 52,945 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,144 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,788 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,921 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,355 |
| Counties of Ireland | 0 | - | 4.92 | 196,828 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,163 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,054 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,057 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,153 |
| Roman Names for Places | 0 | - | 4.62 | 58,607 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,284 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,797 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,950 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,808 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,906 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,213 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,876 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,272 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,052 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,954 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,179 |
| Malta Country Quiz | 0 | - | 4.81 | 31,198 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,664 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,718,789 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,575 |
| Official European Union Languages | 0 | - | 4.97 | 239,434 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,440 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,387 |
| Russian Inventions | 0 | - | 4.39 | 13,004 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,577 |
| History of Paris | 0 | - | 4.24 | 13,667 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,091 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,434 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,146 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,025 |
| Byzantine History | 0 | - | 4.91 | 28,987 |
| Byzantine Emperors | 0 | - | 4.92 | 14,500 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,955 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,727 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,226 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,930 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,538 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,370 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 403,875 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,819 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,024 |
| Countries by Founding Story | 0 | - | 4.95 | 77,613 |
| Independence from Whom | 0 | - | 4.99 | 212,647 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,139 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,718 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,878 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,656 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,039 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,795 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,041 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,713 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,042 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,851 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,363 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,580 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,268 |
