| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,305 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,230 |
| Slavic Countries | 0 | - | 4.96 | 110,892 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,678 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,006 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,467 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,474 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,162 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,057 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,238 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,542 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,164 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,361 |
| Name the English Monarchs | 0 | - | 4.92 | 498,149 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,466 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,404 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,158 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,549 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,093 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,407 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,651 |
| The Only European Country ... | 0 | - | 4.91 | 213,965 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,626 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,155 |
| Name that Greek Letter | 0 | - | 4.94 | 321,762 |
| The Trojan War | 0 | - | 4.83 | 39,449 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,613 |
| History of Italy | 0 | - | 4.55 | 31,828 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,073 |
| Roman Emperors | 0 | - | 4.95 | 118,543 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,989 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,508 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,502 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,482 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,279 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,739 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,333 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,438 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,499 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,923 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,041 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,380 |
| Counties of England | 0 | - | 4.97 | 789,541 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,187 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,506 |
| Ancient Greek Words | 0 | - | 4.92 | 110,735 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,355 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,068 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,443 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,930 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,855 |
| Monarchies of Europe | 0 | - | 4.90 | 97,359 |
| European Countries with One Border | 0 | - | 4.97 | 181,679 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,582 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,296 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,104 |
| Geography of Russia | 0 | - | 4.57 | 21,430 |
| History of Austria | 0 | - | 4.70 | 17,759 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,244 |
| Geography of the French Empire | 0 | - | 4.48 | 26,941 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| History of France | 0 | - | 4.59 | 56,113 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,763 |
| States of Germany | 0 | - | 4.96 | 150,180 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,389 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,061 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,522 |
| Regions of Italy | 0 | - | 4.92 | 74,779 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,642 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,855 |
| The Vikings! | 0 | - | 4.46 | 28,249 |
| The Portuguese Empire | 0 | - | 4.54 | 11,995 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,424 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,235 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,034 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,197 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,831 |
| Geography of the British Empire | 0 | - | 4.48 | 39,489 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,518 |
| Champions League Winners | 0 | - | 4.92 | 996,840 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,948 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,284 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,147 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,644 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,325 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,255 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,964 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,304 |
| Russia Country Quiz | 0 | - | 4.85 | 113,677 |
| Countries That Border Russia | 0 | - | 4.98 | 459,026 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,874 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,051 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,266 |
| Departments of France | 0 | - | 4.93 | 52,867 |
| Countries Bordering France | 0 | - | 4.83 | 399,534 |
| Germany Country Quiz | 0 | - | 4.82 | 156,624 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,195 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,157 |
| Italy Country Quiz | 0 | - | 4.82 | 122,271 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,447 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,129 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,381 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,694 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,115 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,703 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,361 |
| England or Wales? | 0 | - | 4.94 | 45,342 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,560 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,491 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,605 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,126 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,799 |
| Slavic Languages | 0 | - | 4.67 | 54,000 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,785 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,775 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,053 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,978 |
| History of The Netherlands | 0 | - | 4.46 | 17,320 |
| Medieval English History | 0 | - | 4.53 | 43,330 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,656,616 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,322 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,098 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,801 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,872 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,862 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,009 |
| Random Point on Land to European Country | 0 | - | 4.93 | 76,133 |
| Countries that Border Poland | 0 | - | 4.99 | 171,409 |
| Embarrassing Chapters in Russian History | 0 | - | 3.73 | 20,238 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,397 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,588 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,724 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,630 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,549 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,778 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,528 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,415 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,812 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,554 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,825 |
| French History Multiple Choice | 0 | - | 4.55 | 32,882 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,423 |
| History of Germany | 0 | - | 4.39 | 52,624 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,941 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,448 |
| Counties of Ireland | 0 | - | 4.92 | 193,159 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,473 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,375 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,545 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,686 |
| Roman Names for Places | 0 | - | 4.62 | 57,894 |
| Byzantine History | 0 | - | 4.91 | 28,632 |
| History of Spain | 0 | - | 4.29 | 21,006 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,037 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,372 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,710 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,693 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,076 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,312 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,968 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,841 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,835 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,780 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,795 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,395 |
| Malta Country Quiz | 0 | - | 4.81 | 30,842 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,607 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,969 |
| European Cities Beginning with B - Click Map | 0 | - | 4.75 | 77,406 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,174 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,663 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,580 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,934 |
| Russian Inventions | 0 | - | 4.39 | 12,892 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,625 |
| History of Paris | 0 | - | 4.24 | 13,617 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,423 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,489 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,991 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,045 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,900 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,883 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,702 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,490 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,877 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,130 |
| British History A-Z #1 | 0 | - | 4.45 | 45,952 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,339 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,140 |
| History of Scotland | 0 | - | 4.51 | 21,010 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,160 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,078 |
| Australian Capitals | 0 | - | 4.92 | 62,595 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,603 |
| Official European Union Languages | 0 | - | 4.97 | 236,926 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,727 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,425 |
