| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,308 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,232 |
| Slavic Countries | 0 | - | 4.96 | 110,896 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,783 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,009 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,474 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,478 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,166 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,066 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,239 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,545 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,166 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,384 |
| Name the English Monarchs | 0 | - | 4.92 | 498,175 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,467 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,409 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,160 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,553 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,097 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,423 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,658 |
| The Only European Country ... | 0 | - | 4.91 | 213,973 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,632 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,204 |
| Name that Greek Letter | 0 | - | 4.94 | 321,769 |
| The Trojan War | 0 | - | 4.83 | 39,452 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,617 |
| History of Italy | 0 | - | 4.55 | 31,829 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,078 |
| Roman Emperors | 0 | - | 4.95 | 118,551 |
| 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 | 59,517 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,505 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,556 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,307 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,742 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,335 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,446 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,502 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,931 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,053 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,383 |
| Counties of England | 0 | - | 4.97 | 789,572 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,206 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,537 |
| Ancient Greek Words | 0 | - | 4.92 | 110,738 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,359 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,070 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,446 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,935 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,858 |
| Monarchies of Europe | 0 | - | 4.90 | 97,361 |
| European Countries with One Border | 0 | - | 4.97 | 181,680 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,585 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,298 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,111 |
| Geography of Russia | 0 | - | 4.57 | 21,431 |
| History of Austria | 0 | - | 4.70 | 17,759 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,253 |
| Geography of the French Empire | 0 | - | 4.48 | 26,942 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| History of France | 0 | - | 4.59 | 56,118 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,767 |
| States of Germany | 0 | - | 4.96 | 150,185 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,389 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,066 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,527 |
| Regions of Italy | 0 | - | 4.92 | 74,783 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,643 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,863 |
| The Vikings! | 0 | - | 4.46 | 28,250 |
| The Portuguese Empire | 0 | - | 4.54 | 11,995 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,429 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,235 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,047 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,198 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,834 |
| Geography of the British Empire | 0 | - | 4.48 | 39,493 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,522 |
| Champions League Winners | 0 | - | 4.92 | 996,874 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,951 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,287 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,150 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,652 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,329 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,258 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,976 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,306 |
| Russia Country Quiz | 0 | - | 4.85 | 113,684 |
| Countries That Border Russia | 0 | - | 4.98 | 459,032 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,875 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,052 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,267 |
| Departments of France | 0 | - | 4.93 | 52,875 |
| Countries Bordering France | 0 | - | 4.83 | 399,563 |
| Germany Country Quiz | 0 | - | 4.82 | 156,631 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,201 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,165 |
| Italy Country Quiz | 0 | - | 4.82 | 122,276 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,447 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,133 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,381 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,701 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,118 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,704 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,368 |
| England or Wales? | 0 | - | 4.94 | 45,345 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,568 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,496 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,605 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,130 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,801 |
| Slavic Languages | 0 | - | 4.67 | 54,000 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,786 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,776 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,056 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,984 |
| History of The Netherlands | 0 | - | 4.46 | 17,320 |
| Medieval English History | 0 | - | 4.53 | 43,331 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,656,743 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,324 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,098 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,802 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,872 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,863 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,011 |
| Random Point on Land to European Country | 0 | - | 4.93 | 76,135 |
| Countries that Border Poland | 0 | - | 4.99 | 171,412 |
| 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 | 98,599 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,725 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,632 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,549 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,779 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,530 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,417 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,815 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,558 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,828 |
| French History Multiple Choice | 0 | - | 4.55 | 32,882 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,429 |
| 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 | 41,449 |
| Counties of Ireland | 0 | - | 4.92 | 193,167 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,474 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,378 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,545 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,689 |
| 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 | 37,039 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,375 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,722 |
| 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 | 65,313 |
| 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 | 434,854 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,782 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,801 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,404 |
| Malta Country Quiz | 0 | - | 4.81 | 30,842 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,613 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,971 |
| European Cities Beginning with B - Click Map | 0 | - | 4.75 | 77,409 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,177 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,686 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,580 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,935 |
| Russian Inventions | 0 | - | 4.39 | 12,892 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,628 |
| History of Paris | 0 | - | 4.24 | 13,617 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,428 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,490 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,991 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,046 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,903 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,885 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,706 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,490 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,879 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,132 |
| British History A-Z #1 | 0 | - | 4.45 | 45,965 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,342 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,144 |
| History of Scotland | 0 | - | 4.51 | 21,010 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,168 |
| 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 | 236,948 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,728 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,427 |
