| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,105 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,913 |
| Slavic Countries | 0 | - | 4.96 | 111,543 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,918 |
| History of Russia Quiz | 0 | - | 4.49 | 31,898 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,054 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,004 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 79,405 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,414 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,808 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,713 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,640 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,788 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,437 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,279 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,314 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,764 |
| Name the English Monarchs | 0 | - | 4.91 | 501,896 |
| Countries that Border Poland | 0 | - | 4.99 | 172,137 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,763 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,134 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,824 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,759 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,709 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,167 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,970 |
| The Only European Country ... | 0 | - | 4.91 | 216,216 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,899 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,562 |
| Name that Greek Letter | 0 | - | 4.93 | 323,230 |
| The Trojan War | 0 | - | 4.83 | 39,672 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,646 |
| History of Italy | 0 | - | 4.55 | 31,953 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,455 |
| Roman Emperors | 0 | - | 4.95 | 119,755 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,634 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,186 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,816 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,241,469 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,966 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,512 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,059 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,349 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,047 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,135 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,992 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,329 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,680 |
| Counties of England | 0 | - | 4.97 | 795,431 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,039 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,983 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,938 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,099 |
| Ancient Greek Words | 0 | - | 4.93 | 111,437 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,735 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,348 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,060 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,597 |
| Monarchies of Europe | 0 | - | 4.90 | 98,016 |
| European Countries with One Border | 0 | - | 4.97 | 182,596 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,414 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,082 |
| Geography of Russia | 0 | - | 4.57 | 21,517 |
| Russian Inventions | 0 | - | 4.39 | 12,946 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,160 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,652 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,365 |
| Romania Country Quiz | 0 | - | 4.63 | 53,721 |
| History of Austria | 0 | - | 4.70 | 17,847 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,249 |
| Geography of the French Empire | 0 | - | 4.45 | 27,039 |
| The French Revolution | 0 | - | 4.46 | 23,918 |
| History of France | 0 | - | 4.59 | 56,897 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,656 |
| States of Germany | 0 | - | 4.96 | 152,133 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,466 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,937 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,836 |
| Regions of Italy | 0 | - | 4.92 | 75,688 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,045 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,004 |
| The Vikings! | 0 | - | 4.46 | 28,333 |
| The Portuguese Empire | 0 | - | 4.58 | 12,054 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,751 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,096 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,907 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,318 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,369 |
| Geography of the British Empire | 0 | - | 4.48 | 39,640 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,671 |
| Champions League Winners | 0 | - | 4.92 | 1,005,103 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,700 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,005 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,861 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,846 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,477 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,859 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,363 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,475 |
| Russia Country Quiz | 0 | - | 4.85 | 114,356 |
| Countries That Border Russia | 0 | - | 4.98 | 461,337 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,641 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,556 |
| Departments of France | 0 | - | 4.93 | 53,936 |
| Countries Bordering France | 0 | - | 4.83 | 402,116 |
| Germany Country Quiz | 0 | - | 4.82 | 157,688 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,976 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,780 |
| Italy Country Quiz | 0 | - | 4.82 | 123,278 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,191 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,875 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,529 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,567 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,788 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,477 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,365 |
| England or Wales? | 0 | - | 4.94 | 45,628 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,053 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,087 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,647 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,677 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,198 |
| Latvia Country Quiz | 0 | - | 4.77 | 31,996 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,956 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,886 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,598 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,278 |
| History of The Netherlands | 0 | - | 4.46 | 17,421 |
| Medieval English History | 0 | - | 4.53 | 43,482 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,691,606 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,618 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,195 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,069 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,314 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,381 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,898 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,701 |
| Poland Country Quiz | 0 | - | 4.22 | 63,213 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,291 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,448 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,666 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,848 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,697 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,342 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,310 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,736 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,228 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,814 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,120 |
| French History Multiple Choice | 0 | - | 4.55 | 33,010 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,319 |
| History of Germany | 0 | - | 4.39 | 52,791 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,546 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,624 |
| Counties of Ireland | 0 | - | 4.92 | 194,909 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,793 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,844 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,710 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,875 |
| Roman Names for Places | 0 | - | 4.62 | 58,222 |
| Byzantine History | 0 | - | 4.91 | 28,768 |
| History of Spain | 0 | - | 4.23 | 21,073 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,136 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,770 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,375 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,742 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,757 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,139 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,612 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,114 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,930 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,243 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,579 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,749 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,677 |
| Malta Country Quiz | 0 | - | 4.81 | 31,020 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,993 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,384 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,059 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,932 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,613 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,518 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,574 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,053 |
| French Inventions | 0 | - | 4.08 | 13,891 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,101 |
| History of Paris | 0 | - | 4.24 | 13,643 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,190 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,951 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,123 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,091 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,365 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,456 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,200 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,827 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,438 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,236 |
| British History A-Z #1 | 0 | - | 4.45 | 46,428 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,610 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,513 |
