| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,326 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,244 |
| Slavic Countries | 0 | - | 4.96 | 110,907 |
| History of Russia Quiz | 0 | - | 4.49 | 31,800 |
| Europe Map Quiz | 0 | - | 5.00 | 4,733,212 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,019 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,486 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,498 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,176 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,076 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,254 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,561 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,173 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,425 |
| Name the English Monarchs | 0 | - | 4.92 | 498,249 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,474 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,418 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,167 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,563 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,130 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,453 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,676 |
| The Only European Country ... | 0 | - | 4.91 | 214,017 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,670 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,307 |
| Name that Greek Letter | 0 | - | 4.94 | 321,784 |
| The Trojan War | 0 | - | 4.83 | 39,456 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,636 |
| History of Italy | 0 | - | 4.55 | 31,832 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,086 |
| Roman Emperors | 0 | - | 4.95 | 118,566 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,990 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,539 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,514 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,839 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,473 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,752 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,354 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,485 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,515 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,986 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,090 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,410 |
| Counties of England | 0 | - | 4.97 | 789,691 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,294 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,611 |
| Ancient Greek Words | 0 | - | 4.92 | 110,748 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,375 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,077 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,465 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,964 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,870 |
| Monarchies of Europe | 0 | - | 4.90 | 97,373 |
| European Countries with One Border | 0 | - | 4.97 | 181,701 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,605 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,322 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,171 |
| Geography of Russia | 0 | - | 4.57 | 21,434 |
| History of Austria | 0 | - | 4.70 | 17,761 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,276 |
| Geography of the French Empire | 0 | - | 4.48 | 26,943 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| History of France | 0 | - | 4.59 | 56,143 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,785 |
| States of Germany | 0 | - | 4.96 | 150,216 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,390 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,077 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,555 |
| Regions of Italy | 0 | - | 4.92 | 74,796 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,649 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,875 |
| The Vikings! | 0 | - | 4.46 | 28,251 |
| The Portuguese Empire | 0 | - | 4.54 | 11,997 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,441 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,266 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,074 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,205 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,851 |
| Geography of the British Empire | 0 | - | 4.48 | 39,499 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,537 |
| Champions League Winners | 0 | - | 4.92 | 997,021 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,969 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,294 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,155 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,692 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,369 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,282 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,028 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,325 |
| Russia Country Quiz | 0 | - | 4.85 | 113,693 |
| Countries That Border Russia | 0 | - | 4.98 | 459,070 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,883 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,064 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,295 |
| Departments of France | 0 | - | 4.93 | 52,897 |
| Countries Bordering France | 0 | - | 4.83 | 399,676 |
| Germany Country Quiz | 0 | - | 4.82 | 156,658 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,228 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,209 |
| Italy Country Quiz | 0 | - | 4.82 | 122,295 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,461 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,150 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,383 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,757 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,128 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,710 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,391 |
| England or Wales? | 0 | - | 4.94 | 45,351 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,589 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,527 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,605 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,166 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,806 |
| Slavic Languages | 0 | - | 4.67 | 54,008 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,791 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,776 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,094 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,992 |
| History of The Netherlands | 0 | - | 4.46 | 17,322 |
| Medieval English History | 0 | - | 4.53 | 43,332 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,657,350 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,345 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,102 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,804 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,878 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,871 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,027 |
| Random Point on Land to European Country | 0 | - | 4.93 | 76,149 |
| Countries that Border Poland | 0 | - | 4.99 | 171,420 |
| Embarrassing Chapters in Russian History | 0 | - | 3.73 | 20,239 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,399 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,641 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,732 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,637 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,554 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,797 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,531 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,423 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,827 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,562 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,836 |
| French History Multiple Choice | 0 | - | 4.55 | 32,884 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,474 |
| History of Germany | 0 | - | 4.39 | 52,625 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,951 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,454 |
| Counties of Ireland | 0 | - | 4.92 | 193,191 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,483 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,398 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,548 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,692 |
| Roman Names for Places | 0 | - | 4.62 | 57,896 |
| Byzantine History | 0 | - | 4.91 | 28,637 |
| History of Spain | 0 | - | 4.29 | 21,008 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,040 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,397 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,746 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,693 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,078 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,319 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,972 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,844 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,902 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,784 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,813 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,472 |
| Malta Country Quiz | 0 | - | 4.81 | 30,847 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,638 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,984 |
| European Cities Beginning with B - Click Map | 0 | - | 4.75 | 77,422 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,193 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,744 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,586 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,945 |
| Russian Inventions | 0 | - | 4.39 | 12,893 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,638 |
| History of Paris | 0 | - | 4.24 | 13,619 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,440 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,501 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,994 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,047 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,918 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,893 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,717 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,496 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,889 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,132 |
| British History A-Z #1 | 0 | - | 4.45 | 46,004 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,348 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,155 |
| History of Scotland | 0 | - | 4.51 | 21,010 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,203 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,078 |
| Australian Capitals | 0 | - | 4.92 | 62,596 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,621 |
| Official European Union Languages | 0 | - | 4.97 | 237,013 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,744 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,441 |
