| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,981 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,479 |
| Europe Map Quiz | 0 | - | 5.00 | 4,761,498 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,158 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 81,368 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,595 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,938 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,819 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,075 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,934 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,166 |
| The Only European Country ... | 0 | - | 4.91 | 216,504 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,055 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,361 |
| Name the English Monarchs | 0 | - | 4.91 | 502,417 |
| History of Russia Quiz | 0 | - | 4.47 | 31,913 |
| History of Italy | 0 | - | 4.55 | 31,968 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,651 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,220 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,855 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,624 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,166 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,605 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,119 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,413 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,554 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,231 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,152 |
| Slavic Countries | 0 | - | 4.96 | 111,618 |
| The Trojan War | 0 | - | 4.83 | 39,714 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,159 |
| Name that Greek Letter | 0 | - | 4.93 | 323,372 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,784 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,510 |
| Roman Emperors | 0 | - | 4.95 | 119,975 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,243,358 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,285 |
| Counties of England | 0 | - | 4.97 | 796,316 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,681 |
| History of Austria | 0 | - | 4.70 | 17,859 |
| Geography of the French Empire | 0 | - | 4.45 | 27,055 |
| The French Revolution | 0 | - | 4.46 | 23,927 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,889 |
| The Vikings! | 0 | - | 4.46 | 28,341 |
| The Portuguese Empire | 0 | - | 4.58 | 12,063 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,691 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,346 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,815 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,475 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,241 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,706 |
| Monarchies of Europe | 0 | - | 4.90 | 98,109 |
| European Countries with One Border | 0 | - | 4.97 | 182,726 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,524 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,393 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,038 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,868 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,365 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,756 |
| States of Germany | 0 | - | 4.96 | 152,422 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,004 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,620 |
| Regions of Italy | 0 | - | 4.92 | 75,830 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,115 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,904 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,178 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,970 |
| Champions League Winners | 0 | - | 4.92 | 1,006,203 |
| History of France | 0 | - | 4.59 | 56,947 |
| Ancient Greek Words | 0 | - | 4.93 | 111,545 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,346 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,442 |
| Geography of the British Empire | 0 | - | 4.48 | 39,665 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,813 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,137 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,079 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,958 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,654 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,884 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,135 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,740 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,045 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,126 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,810 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,643 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,241 |
| Russia Country Quiz | 0 | - | 4.85 | 114,440 |
| Countries That Border Russia | 0 | - | 4.98 | 461,615 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,318 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,331 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,671 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,697 |
| Departments of France | 0 | - | 4.93 | 54,055 |
| Countries Bordering France | 0 | - | 4.83 | 402,434 |
| Germany Country Quiz | 0 | - | 4.82 | 157,799 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,295 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,298 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 74,094 |
| Italy Country Quiz | 0 | - | 4.82 | 123,371 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,312 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,992 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,541 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,114 |
| History of The Netherlands | 0 | - | 4.46 | 17,429 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,897 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,614 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,531 |
| England or Wales? | 0 | - | 4.94 | 45,670 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,266 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,070 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,473 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,985 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,908 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,316 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,943 |
| History of Spain | 0 | - | 4.23 | 21,084 |
| Medieval English History | 0 | - | 4.53 | 43,501 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,426 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,742 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,206 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,096 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,128 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,037 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,365 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,423 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,006 |
| Countries that Border Poland | 0 | - | 4.99 | 172,237 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,828 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,714 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,197 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,863 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,795 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,373 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,763 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,294 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,855 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,164 |
| French History Multiple Choice | 0 | - | 4.55 | 33,030 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,574 |
| History of Germany | 0 | - | 4.39 | 52,812 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,636 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,650 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,861 |
| Counties of Ireland | 0 | - | 4.92 | 195,138 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,847 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,989 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,736 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,915 |
| Roman Names for Places | 0 | - | 4.62 | 58,267 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,157 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,913 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,611 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,745 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,784 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,145 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,646 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,137 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,952 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,624 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,809 |
| Malta Country Quiz | 0 | - | 4.81 | 31,044 |
| Australian Capitals | 0 | - | 4.92 | 62,718 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,696,397 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,102 |
| Official European Union Languages | 0 | - | 4.97 | 238,435 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,805 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,739 |
| Russian Inventions | 0 | - | 4.39 | 12,952 |
| French Inventions | 0 | - | 4.08 | 13,897 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,170 |
| History of Paris | 0 | - | 4.24 | 13,646 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,357 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,016 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,100 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,464 |
| Byzantine History | 0 | - | 4.91 | 28,851 |
| Byzantine Emperors | 0 | - | 4.92 | 13,971 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,555 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,307 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,913 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,511 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,439 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,701 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 401,141 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,152 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,684 |
| Countries by Founding Story | 0 | - | 4.95 | 77,173 |
| Independence from Whom | 0 | - | 4.99 | 211,621 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,915 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,457 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,321 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,937 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,071 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 117,575 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,796 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,471 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,416 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,521 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,470 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,781 |
