| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,538 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,383 |
| Slavic Countries | 0 | - | 4.96 | 111,075 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,668 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,279 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,685 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,743 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,350 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,240 |
| History of Russia Quiz | 0 | - | 4.49 | 31,823 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,796 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,373 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,917 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,237 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,988 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,124 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,970 |
| Name the English Monarchs | 0 | - | 4.92 | 499,214 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,481 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,845 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,683 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,614 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,499 |
| Name that Greek Letter | 0 | - | 4.94 | 322,157 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,697 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,557 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,853 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,014 |
| The Only European Country ... | 0 | - | 4.91 | 214,626 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,012 |
| The Trojan War | 0 | - | 4.83 | 39,507 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,924 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,183 |
| Roman Emperors | 0 | - | 4.95 | 118,855 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,052 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,792 |
| History of Italy | 0 | - | 4.55 | 31,867 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,525 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,045 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,656 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,348 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,932 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,968 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,549 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,966 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,643 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,847 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,891 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,861 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,675 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,558 |
| Ancient Greek Words | 0 | - | 4.93 | 110,950 |
| Counties of England | 0 | - | 4.97 | 791,244 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,493 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,528 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,214 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,691 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,234 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,058 |
| Monarchies of Europe | 0 | - | 4.90 | 97,549 |
| European Countries with One Border | 0 | - | 4.97 | 181,909 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,810 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,531 |
| Russian Inventions | 0 | - | 4.39 | 12,906 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,527 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,002 |
| States of Germany | 0 | - | 4.96 | 150,707 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,226 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,899 |
| Regions of Italy | 0 | - | 4.92 | 75,000 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,541 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,739 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,001 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,837 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,554 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,204 |
| Champions League Winners | 0 | - | 4.92 | 998,919 |
| Geography of Russia | 0 | - | 4.57 | 21,455 |
| Countries That Border Russia | 0 | - | 4.98 | 459,854 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 41,958 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,428 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,144 |
| Romania Country Quiz | 0 | - | 4.63 | 53,498 |
| History of Austria | 0 | - | 4.70 | 17,780 |
| Geography of the French Empire | 0 | - | 4.45 | 26,970 |
| The French Revolution | 0 | - | 4.46 | 23,835 |
| Countries Bordering France | 0 | - | 4.83 | 400,611 |
| History of France | 0 | - | 4.59 | 56,420 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,411 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,618 |
| The Vikings! | 0 | - | 4.46 | 28,269 |
| The Portuguese Empire | 0 | - | 4.58 | 12,008 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,239 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,985 |
| Geography of the British Empire | 0 | - | 4.48 | 39,547 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,584 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,140 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,455 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,331 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,208 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,755 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,669 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,850 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,601 |
| Russia Country Quiz | 0 | - | 4.85 | 113,865 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,845 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,486 |
| Departments of France | 0 | - | 4.93 | 53,084 |
| Germany Country Quiz | 0 | - | 4.82 | 156,901 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,406 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,829 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,809 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,490 |
| Italy Country Quiz | 0 | - | 4.82 | 122,491 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,649 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,320 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,076 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,409 |
| History of The Netherlands | 0 | - | 4.46 | 17,348 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,278 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,872 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,611 |
| Medieval English History | 0 | - | 4.53 | 43,355 |
| England or Wales? | 0 | - | 4.94 | 45,426 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,914 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,666,188 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,558 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,130 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,086 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,865 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,614 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,004 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,542 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,014 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,248 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,901 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,546 |
| Countries that Border Poland | 0 | - | 4.99 | 171,613 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,117 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,503 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,726 |
| Montenegro Country Quiz | 0 | - | 4.60 | 23,582 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,265 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,942 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,580 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,480 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,937 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,639 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,908 |
| French History Multiple Choice | 0 | - | 4.55 | 32,916 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,969 |
| History of Germany | 0 | - | 4.39 | 52,679 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,110 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,499 |
| Counties of Ireland | 0 | - | 4.92 | 193,660 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,574 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,687 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,590 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,743 |
| Roman Names for Places | 0 | - | 4.62 | 57,979 |
| Byzantine History | 0 | - | 4.91 | 28,670 |
| History of Spain | 0 | - | 4.29 | 21,027 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,062 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,986 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,138 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,710 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,655 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,098 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,394 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,006 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,873 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,772 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,947 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,921 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,315 |
| Malta Country Quiz | 0 | - | 4.81 | 30,888 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,928 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,095 |
| European Cities Beginning with B - Click Map | 0 | - | 4.75 | 77,581 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,411 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,407 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,256 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,112 |
| Lithuania Country Quiz | 0 | - | 4.60 | 31,429 |
| Estonia Country Quiz | 0 | - | 4.60 | 30,922 |
| French Inventions | 0 | - | 4.08 | 13,871 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,738 |
| History of Paris | 0 | - | 4.24 | 13,625 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,661 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,616 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,046 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,057 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,035 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,026 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,454 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,850 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,587 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,993 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,152 |
| British History A-Z #1 | 0 | - | 4.45 | 46,225 |
