| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,403 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,297 |
| Slavic Countries | 0 | - | 4.96 | 111,765 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,111 |
| History of Russia Quiz | 0 | - | 4.47 | 31,939 |
| Europe Map Quiz | 0 | - | 5.00 | 4,766,723 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,560 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 82,703 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,865 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,168 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,008 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,621 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,971 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,528 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,406 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,378 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,557 |
| Name the English Monarchs | 0 | - | 4.91 | 503,303 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,904 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,300 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,899 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,847 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,370 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,267 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,719 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,441 |
| The Only European Country ... | 0 | - | 4.91 | 216,997 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,346 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,124 |
| Name that Greek Letter | 0 | - | 4.93 | 323,972 |
| The Trojan War | 0 | - | 4.83 | 39,766 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,004 |
| History of Italy | 0 | - | 4.55 | 32,017 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,591 |
| Roman Emperors | 0 | - | 4.95 | 120,205 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,691 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,267 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,908 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,246,110 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,656 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,775 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,304 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,004 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,258 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,844 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,323 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,463 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,214 |
| Counties of England | 0 | - | 4.97 | 797,838 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,007 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,046 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,060 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,343 |
| Ancient Greek Words | 0 | - | 4.93 | 111,753 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,954 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,691 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,496 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,877 |
| Monarchies of Europe | 0 | - | 4.90 | 98,233 |
| European Countries with One Border | 0 | - | 4.97 | 182,939 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,719 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,734 |
| Geography of Russia | 0 | - | 4.57 | 21,547 |
| Russian Inventions | 0 | - | 4.39 | 12,970 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,255 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,759 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,480 |
| Romania Country Quiz | 0 | - | 4.63 | 53,838 |
| History of Austria | 0 | - | 4.70 | 17,878 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,599 |
| Geography of the French Empire | 0 | - | 4.45 | 27,122 |
| The French Revolution | 0 | - | 4.47 | 24,025 |
| History of France | 0 | - | 4.59 | 57,134 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,968 |
| States of Germany | 0 | - | 4.95 | 152,865 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,157 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,426 |
| Regions of Italy | 0 | - | 4.92 | 76,054 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,205 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,288 |
| The Vikings! | 0 | - | 4.46 | 28,357 |
| The Portuguese Empire | 0 | - | 4.58 | 12,076 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,135 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,291 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,063 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,371 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,573 |
| Geography of the British Empire | 0 | - | 4.48 | 39,714 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,721 |
| Champions League Winners | 0 | - | 4.92 | 1,008,187 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,967 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,215 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,121 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,571 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,106 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,332 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,498 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,865 |
| Russia Country Quiz | 0 | - | 4.83 | 114,580 |
| Countries That Border Russia | 0 | - | 4.98 | 462,065 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,725 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,922 |
| Departments of France | 0 | - | 4.93 | 54,265 |
| Countries Bordering France | 0 | - | 4.83 | 402,828 |
| Germany Country Quiz | 0 | - | 4.83 | 158,004 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,467 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,660 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,519 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,163 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,565 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,522 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,009 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,779 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,788 |
| England or Wales? | 0 | - | 4.94 | 45,746 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,679 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,021 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,667 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,261 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,330 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,652 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,064 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,034 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,934 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,228 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,369 |
| History of The Netherlands | 0 | - | 4.46 | 17,449 |
| Medieval English History | 0 | - | 4.53 | 43,549 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,703,273 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,921 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,239 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,144 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,444 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,546 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,191 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,751 |
| Countries that Border Poland | 0 | - | 4.99 | 172,389 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,319 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,193 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,745 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,920 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,751 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,379 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,500 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,809 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,374 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,909 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,225 |
| French History Multiple Choice | 0 | - | 4.55 | 33,084 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,493 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,022 |
| History of Germany | 0 | - | 4.39 | 52,865 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,759 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,685 |
| Counties of Ireland | 0 | - | 4.92 | 195,613 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,912 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,182 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,769 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,966 |
| Roman Names for Places | 0 | - | 4.62 | 58,347 |
| Byzantine History | 0 | - | 4.91 | 28,891 |
| Byzantine Emperors | 0 | - | 4.92 | 14,269 |
| History of Spain | 0 | - | 4.23 | 21,105 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,193 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,173 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,034 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,765 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,819 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,172 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,724 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,183 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,984 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,536 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,729 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,910 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 401,976 |
| Malta Country Quiz | 0 | - | 4.81 | 31,087 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,400 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,494 |
| European Cities Beginning with B - Click Map | 0 | - | 4.78 | 78,275 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,195 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 214,025 |
| Russian History A-Z | 0 | - | 4.38 | 31,790 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,941 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,112 |
| French Inventions | 0 | - | 4.08 | 13,900 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,276 |
| History of Paris | 0 | - | 4.24 | 13,655 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,589 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,102 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,160 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,116 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,573 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,648 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,419 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,001 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,635 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,281 |
| British History A-Z #1 | 0 | - | 4.45 | 46,540 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,724 |
