| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,611 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,444 |
| Slavic Countries | 0 | - | 4.96 | 111,924 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,216 |
| History of Russia Quiz | 0 | - | 4.47 | 31,957 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,502 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,790 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,607 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,142 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,357 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,170 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,131 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,592 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,190 |
| Name the English Monarchs | 0 | - | 4.91 | 504,147 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,070 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,323 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,081 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,538 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,651 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,128 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,750 |
| The Only European Country ... | 0 | - | 4.91 | 217,499 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,642 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,089 |
| Name that Greek Letter | 0 | - | 4.93 | 324,226 |
| The Trojan War | 0 | - | 4.83 | 39,808 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,294 |
| History of Italy | 0 | - | 4.55 | 32,062 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,664 |
| Roman Emperors | 0 | - | 4.95 | 120,442 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,725 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,304 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,966 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,600 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,195 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,092 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,961 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,472 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,480 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,383 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,490 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,364 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,565 |
| Counties of England | 0 | - | 4.97 | 799,180 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,368 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,026 |
| Ancient Greek Words | 0 | - | 4.93 | 111,938 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,047 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,978 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,071 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,891 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,765 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,028 |
| Monarchies of Europe | 0 | - | 4.90 | 98,381 |
| European Countries with One Border | 0 | - | 4.97 | 183,160 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,939 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,084 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,107 |
| Geography of Russia | 0 | - | 4.57 | 21,556 |
| History of Austria | 0 | - | 4.70 | 17,913 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,893 |
| Geography of the French Empire | 0 | - | 4.45 | 27,157 |
| The French Revolution | 0 | - | 4.47 | 24,070 |
| History of France | 0 | - | 4.61 | 57,298 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,254 |
| States of Germany | 0 | - | 4.95 | 153,301 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,309 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,672 |
| Regions of Italy | 0 | - | 4.92 | 76,306 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,290 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,460 |
| The Vikings! | 0 | - | 4.46 | 28,372 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,471 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,433 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,180 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,409 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,705 |
| Geography of the British Empire | 0 | - | 4.48 | 39,744 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,760 |
| Champions League Winners | 0 | - | 4.92 | 1,010,213 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,384 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,290 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,013 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,439 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,716 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,413 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,088 |
| Russia Country Quiz | 0 | - | 4.83 | 114,732 |
| Countries That Border Russia | 0 | - | 4.98 | 462,922 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,503 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,423 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,792 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,209 |
| Departments of France | 0 | - | 4.93 | 54,513 |
| Countries Bordering France | 0 | - | 4.83 | 403,651 |
| Germany Country Quiz | 0 | - | 4.83 | 158,222 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,668 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,774 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,701 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,646 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,621 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,163 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,135 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,270 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,042 |
| England or Wales? | 0 | - | 4.94 | 45,812 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,077 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,121 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,737 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,676 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,698 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,430 |
| Slavic Languages | 0 | - | 4.68 | 54,483 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,086 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,951 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,849 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,805 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,433 |
| History of The Netherlands | 0 | - | 4.46 | 17,491 |
| Medieval English History | 0 | - | 4.53 | 43,578 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,709,826 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,288 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,275 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,198 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,533 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,660 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,412 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,470 |
| Countries that Border Poland | 0 | - | 4.99 | 172,647 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,325 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,999 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,604 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,451 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,932 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,891 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,686 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,872 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,679 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,976 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,291 |
| French History Multiple Choice | 0 | - | 4.55 | 33,133 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,512 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,441 |
| History of Germany | 0 | - | 4.39 | 52,906 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,924 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,720 |
| Counties of Ireland | 0 | - | 4.92 | 196,124 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,036 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,389 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,797 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,999 |
| Roman Names for Places | 0 | - | 4.62 | 58,418 |
| Byzantine History | 0 | - | 4.91 | 28,920 |
| Byzantine Emperors | 0 | - | 4.92 | 14,382 |
| History of Spain | 0 | - | 4.23 | 21,122 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,231 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,407 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,347 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,788 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,852 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,188 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,789 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,214 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,005 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,221 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,814 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,027 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,886 |
| Malta Country Quiz | 0 | - | 4.81 | 31,123 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,421 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,380 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,773 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,783 |
| Russian History A-Z | 0 | - | 4.35 | 31,887 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,091 |
| Russian Inventions | 0 | - | 4.39 | 12,982 |
| French Inventions | 0 | - | 4.10 | 13,910 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,385 |
| History of Paris | 0 | - | 4.24 | 13,663 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,771 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,217 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,182 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,131 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,670 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,764 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,538 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,089 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,761 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,304 |
| British History A-Z #1 | 0 | - | 4.45 | 46,588 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,835 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,773 |
| History of Scotland | 0 | - | 4.51 | 21,134 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,749 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,644 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,558 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,190 |
| Australian Capitals | 0 | - | 4.92 | 62,760 |
