| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,687 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,256 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,015 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,320 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,715 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,800 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,371 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,259 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,075 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,626 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,082 |
| The Only European Country ... | 0 | - | 4.91 | 214,735 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,062 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,936 |
| Name the English Monarchs | 0 | - | 4.92 | 499,382 |
| History of Russia Quiz | 0 | - | 4.49 | 31,828 |
| History of Italy | 0 | - | 4.55 | 31,874 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,536 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,056 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,668 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,992 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,575 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,036 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,659 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,940 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,015 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,578 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,399 |
| Slavic Countries | 0 | - | 4.96 | 111,109 |
| The Trojan War | 0 | - | 4.83 | 39,519 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,700 |
| Name that Greek Letter | 0 | - | 4.94 | 322,224 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,972 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,196 |
| Roman Emperors | 0 | - | 4.95 | 118,982 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,232,057 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,229 |
| Counties of England | 0 | - | 4.97 | 791,501 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,725 |
| History of Austria | 0 | - | 4.70 | 17,783 |
| Geography of the French Empire | 0 | - | 4.45 | 26,977 |
| The French Revolution | 0 | - | 4.46 | 23,843 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,413 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,868 |
| The Vikings! | 0 | - | 4.46 | 28,272 |
| The Portuguese Empire | 0 | - | 4.58 | 12,013 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,593 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,542 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,233 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,238 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,738 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,287 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,104 |
| Monarchies of Europe | 0 | - | 4.90 | 97,569 |
| European Countries with One Border | 0 | - | 4.97 | 181,961 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,843 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,561 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,900 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,411 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,582 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,035 |
| States of Germany | 0 | - | 4.96 | 150,774 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,249 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,692 |
| Regions of Italy | 0 | - | 4.92 | 75,025 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,020 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,936 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,613 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,240 |
| Champions League Winners | 0 | - | 4.92 | 999,335 |
| History of France | 0 | - | 4.59 | 56,457 |
| Ancient Greek Words | 0 | - | 4.93 | 110,982 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,246 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,009 |
| Geography of the British Empire | 0 | - | 4.48 | 39,552 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,188 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,050 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,481 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,368 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,618 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,616 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,348 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,841 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,774 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,545 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,017 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,674 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,924 |
| Russia Country Quiz | 0 | - | 4.85 | 113,908 |
| Countries That Border Russia | 0 | - | 4.98 | 459,947 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,003 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,138 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,546 |
| Departments of France | 0 | - | 4.93 | 53,126 |
| Countries Bordering France | 0 | - | 4.83 | 400,735 |
| Germany Country Quiz | 0 | - | 4.82 | 156,973 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,439 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,681 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,939 |
| Italy Country Quiz | 0 | - | 4.82 | 122,541 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,701 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,345 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,412 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,761 |
| History of The Netherlands | 0 | - | 4.46 | 17,350 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,297 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,905 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,667 |
| England or Wales? | 0 | - | 4.94 | 45,444 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,993 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,904 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,842 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,818 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,093 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,654 |
| History of Spain | 0 | - | 4.29 | 21,031 |
| Medieval English History | 0 | - | 4.53 | 43,364 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,121 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,598 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,132 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,879 |
| European Cities Beginning with B - Click Map | 0 | - | 4.75 | 77,605 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,447 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,025 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,032 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,297 |
| Countries that Border Poland | 0 | - | 4.99 | 171,649 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,506 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,202 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,862 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,693 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,628 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,967 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,598 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,492 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,951 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,646 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,934 |
| French History Multiple Choice | 0 | - | 4.55 | 32,920 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,056 |
| History of Germany | 0 | - | 4.39 | 52,689 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,133 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,510 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,563 |
| Counties of Ireland | 0 | - | 4.92 | 193,728 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,587 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,738 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,595 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,745 |
| Roman Names for Places | 0 | - | 4.62 | 57,992 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,063 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,040 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,211 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,715 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,661 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,102 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,403 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,015 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,876 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,967 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,936 |
| Malta Country Quiz | 0 | - | 4.81 | 30,899 |
| Australian Capitals | 0 | - | 4.92 | 62,636 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,667,926 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,777 |
| Official European Union Languages | 0 | - | 4.97 | 237,413 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,177 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,141 |
| Russian Inventions | 0 | - | 4.39 | 12,909 |
| French Inventions | 0 | - | 4.08 | 13,871 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,758 |
| History of Paris | 0 | - | 4.24 | 13,627 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,699 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,633 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,062 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,052 |
| Byzantine History | 0 | - | 4.91 | 28,671 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,056 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,867 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,606 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,020 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,330 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,038 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,451 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,381 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,353 |
| Countries by Founding Story | 0 | - | 4.95 | 76,746 |
| Independence from Whom | 0 | - | 4.99 | 210,213 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,107 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,144 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,610 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,489 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,604 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,067 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,037 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,913 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,382 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,190 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,974 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,748 |
