| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,467 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,330 |
| Slavic Countries | 0 | - | 4.96 | 111,807 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,140 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,614 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 82,926 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,940 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,223 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,050 |
| History of Russia Quiz | 0 | - | 4.47 | 31,943 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,022 |
| Europe Map Quiz | 0 | - | 5.00 | 4,768,081 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,541 |
| Name the English Monarchs | 0 | - | 4.91 | 503,509 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,706 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,236 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,996 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,415 |
| The Trojan War | 0 | - | 4.83 | 39,775 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,371 |
| Name that Greek Letter | 0 | - | 4.93 | 324,056 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,070 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,608 |
| Roman Emperors | 0 | - | 4.95 | 120,270 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,029 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,376 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,834 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,530 |
| The Only European Country ... | 0 | - | 4.91 | 217,148 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,426 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,320 |
| History of Italy | 0 | - | 4.55 | 32,031 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,705 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,281 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,922 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,475 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,246,922 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,053 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,829 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,351 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,131 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,300 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,984 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,532 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,528 |
| Ancient Greek Words | 0 | - | 4.93 | 111,806 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,995 |
| Counties of England | 0 | - | 4.97 | 798,167 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,440 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,492 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,658 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,224 |
| Champions League Winners | 0 | - | 4.91 | 1,008,801 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,990 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,742 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,573 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,925 |
| Monarchies of Europe | 0 | - | 4.90 | 98,270 |
| European Countries with One Border | 0 | - | 4.97 | 183,006 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,776 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,806 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,757 |
| Geography of Russia | 0 | - | 4.57 | 21,550 |
| Countries That Border Russia | 0 | - | 4.98 | 462,417 |
| History of Austria | 0 | - | 4.70 | 17,888 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,684 |
| Geography of the French Empire | 0 | - | 4.45 | 27,144 |
| The French Revolution | 0 | - | 4.47 | 24,037 |
| Countries Bordering France | 0 | - | 4.83 | 403,163 |
| History of France | 0 | - | 4.59 | 57,194 |
| States of Germany Map Quiz | 0 | - | 4.91 | 133,038 |
| States of Germany | 0 | - | 4.95 | 152,955 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,196 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,147 |
| Regions of Italy | 0 | - | 4.92 | 76,117 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,345 |
| The Vikings! | 0 | - | 4.46 | 28,359 |
| The Portuguese Empire | 0 | - | 4.58 | 12,078 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,216 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,321 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,091 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,384 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,603 |
| Geography of the British Empire | 0 | - | 4.48 | 39,726 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,729 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,009 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,246 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,166 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,686 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,188 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,439 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,682 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,922 |
| Russia Country Quiz | 0 | - | 4.83 | 114,621 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,425 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,395 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,742 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,995 |
| Departments of France | 0 | - | 4.93 | 54,340 |
| Germany Country Quiz | 0 | - | 4.83 | 158,077 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,526 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,050 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,939 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,818 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,320 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,563 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,215 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,383 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,584 |
| Byzantine History | 0 | - | 4.91 | 28,902 |
| Byzantine Emperors | 0 | - | 4.92 | 14,305 |
| History of The Netherlands | 0 | - | 4.46 | 17,464 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,047 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,861 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,858 |
| Medieval English History | 0 | - | 4.53 | 43,557 |
| England or Wales? | 0 | - | 4.94 | 45,758 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,807 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,705,031 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,972 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,251 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,163 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,669 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,471 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,403 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,564 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,270 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,333 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,363 |
| Slavic Languages | 0 | - | 4.68 | 54,430 |
| Countries that Border Poland | 0 | - | 4.99 | 172,484 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,933 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,984 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,298 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,348 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,909 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,861 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,565 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,825 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,524 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,925 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,245 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,309 |
| French History Multiple Choice | 0 | - | 4.55 | 33,100 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,494 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,643 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,128 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,136 |
| History of Germany | 0 | - | 4.39 | 52,874 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,793 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,692 |
| Counties of Ireland | 0 | - | 4.92 | 195,827 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,961 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,597 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,228 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,774 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,976 |
| Roman Names for Places | 0 | - | 4.62 | 58,367 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,684 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,454 |
| History of Spain | 0 | - | 4.23 | 21,108 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,206 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,225 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,029 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,668 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,097 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,772 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,828 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,177 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,739 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,191 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,990 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,731 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,759 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,937 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,256 |
| Malta Country Quiz | 0 | - | 4.81 | 31,096 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,516 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,187 |
| European Cities Beginning with B - Click Map | 0 | - | 4.78 | 78,318 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,246 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,321 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,762 |
| Russian History A-Z | 0 | - | 4.35 | 31,808 |
| Russian Inventions | 0 | - | 4.39 | 12,972 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,493 |
| French Inventions | 0 | - | 4.08 | 13,902 |
| History of Paris | 0 | - | 4.24 | 13,657 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,001 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,161 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,534 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,119 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,955 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 493,611 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,290 |
| British History A-Z #1 | 0 | - | 4.45 | 46,555 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,750 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,696 |
| History of Scotland | 0 | - | 4.51 | 21,114 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,441 |
