| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,813 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,342 |
| Europe Map Quiz | 0 | - | 5.00 | 4,749,910 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,677 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 75,971 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,100 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,585 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,472 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,935 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,198 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,533 |
| The Only European Country ... | 0 | - | 4.91 | 215,530 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,512 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,590 |
| Name the English Monarchs | 0 | - | 4.91 | 500,703 |
| History of Russia Quiz | 0 | - | 4.49 | 31,861 |
| History of Italy | 0 | - | 4.55 | 31,917 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,592 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,128 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,762 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,271 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,819 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,752 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,865 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,626 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,905 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,850 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,596 |
| Slavic Countries | 0 | - | 4.96 | 111,354 |
| The Trojan War | 0 | - | 4.83 | 39,607 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,280 |
| Name that Greek Letter | 0 | - | 4.93 | 322,814 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,338 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,353 |
| Roman Emperors | 0 | - | 4.95 | 119,481 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,237,128 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,617 |
| Counties of England | 0 | - | 4.97 | 793,520 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,257 |
| History of Austria | 0 | - | 4.70 | 17,818 |
| Geography of the French Empire | 0 | - | 4.45 | 27,012 |
| The French Revolution | 0 | - | 4.46 | 23,881 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,447 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,269 |
| The Vikings! | 0 | - | 4.46 | 28,304 |
| The Portuguese Empire | 0 | - | 4.58 | 12,039 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,640 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,669 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,170 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,549 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,095 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,686 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,353 |
| Monarchies of Europe | 0 | - | 4.90 | 97,796 |
| European Countries with One Border | 0 | - | 4.97 | 182,278 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,135 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,759 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,768 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,610 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,958 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,354 |
| States of Germany | 0 | - | 4.96 | 151,444 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,712 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,953 |
| Regions of Italy | 0 | - | 4.92 | 75,358 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,214 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,381 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,813 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,438 |
| Champions League Winners | 0 | - | 4.92 | 1,002,091 |
| History of France | 0 | - | 4.59 | 56,707 |
| Ancient Greek Words | 0 | - | 4.93 | 111,209 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,285 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,189 |
| Geography of the British Empire | 0 | - | 4.48 | 39,608 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,455 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,611 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,725 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,613 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,636 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,066 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,157 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,962 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,344 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,461 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,295 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,111 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,079 |
| Russia Country Quiz | 0 | - | 4.85 | 114,140 |
| Countries That Border Russia | 0 | - | 4.98 | 460,680 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,155 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,242 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,199 |
| Departments of France | 0 | - | 4.93 | 53,501 |
| Countries Bordering France | 0 | - | 4.83 | 401,471 |
| Germany Country Quiz | 0 | - | 4.82 | 157,348 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,739 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,270 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,326 |
| Italy Country Quiz | 0 | - | 4.82 | 122,819 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,946 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,654 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,476 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,908 |
| History of The Netherlands | 0 | - | 4.46 | 17,379 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,551 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,185 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,021 |
| England or Wales? | 0 | - | 4.94 | 45,534 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,466 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,401 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,893 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,859 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,191 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,601 |
| History of Spain | 0 | - | 4.23 | 21,055 |
| Medieval English History | 0 | - | 4.53 | 43,427 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,266 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,252 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,171 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,983 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,833 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,715 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,192 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,223 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,616 |
| Countries that Border Poland | 0 | - | 4.99 | 171,911 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,635 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,836 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,007 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,757 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,701 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,153 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,673 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,568 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,098 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,739 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,038 |
| French History Multiple Choice | 0 | - | 4.55 | 32,969 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,709 |
| History of Germany | 0 | - | 4.39 | 52,747 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,345 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,570 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,104 |
| Counties of Ireland | 0 | - | 4.92 | 194,272 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,688 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,499 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,659 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,824 |
| Roman Names for Places | 0 | - | 4.62 | 58,110 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,097 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,385 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,780 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,731 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,710 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,118 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,523 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,072 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,908 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,137 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,583 |
| Malta Country Quiz | 0 | - | 4.81 | 30,969 |
| Australian Capitals | 0 | - | 4.92 | 62,676 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,680,672 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,910 |
| Official European Union Languages | 0 | - | 4.97 | 237,879 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,443 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,352 |
| Russian Inventions | 0 | - | 4.39 | 12,928 |
| French Inventions | 0 | - | 4.08 | 13,884 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,957 |
| History of Paris | 0 | - | 4.24 | 13,633 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,960 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,819 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,077 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,216 |
| Byzantine History | 0 | - | 4.91 | 28,732 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,269 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,036 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,714 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,246 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,377 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,117 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,612 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,747 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,515 |
| Countries by Founding Story | 0 | - | 4.95 | 76,953 |
| Independence from Whom | 0 | - | 4.99 | 211,032 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,491 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,286 |
| Africa Map Quiz | 0 | - | 5.00 | 2,112,464 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,312 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,746 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,170 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,140 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,029 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,492 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,407 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,068 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,843 |
