| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,344 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,246 |
| Slavic Countries | 0 | - | 4.96 | 111,712 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,038 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,440 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 82,219 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,747 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,066 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,945 |
| History of Russia Quiz | 0 | - | 4.47 | 31,923 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,450 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,939 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,447 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,508 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,369 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,356 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,334 |
| Name the English Monarchs | 0 | - | 4.91 | 502,951 |
| Countries that Border Poland | 0 | - | 4.99 | 172,318 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,871 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,256 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,884 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,825 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,730 |
| Name that Greek Letter | 0 | - | 4.93 | 323,583 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,148 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,895 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,310 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,986 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,134 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,582 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,339 |
| The Only European Country ... | 0 | - | 4.91 | 216,785 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,218 |
| The Trojan War | 0 | - | 4.83 | 39,741 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,916 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,555 |
| Roman Emperors | 0 | - | 4.95 | 120,115 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,430 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,087 |
| History of Italy | 0 | - | 4.55 | 31,981 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,671 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,243 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,877 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,348 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,904 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,119 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,715 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,246 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,835 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,193 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,701 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,052 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,023 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,028 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,040 |
| Ancient Greek Words | 0 | - | 4.93 | 111,658 |
| Counties of England | 0 | - | 4.97 | 797,301 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,299 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,892 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,604 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,400 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,799 |
| Monarchies of Europe | 0 | - | 4.90 | 98,182 |
| European Countries with One Border | 0 | - | 4.97 | 182,843 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,644 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,672 |
| Russian Inventions | 0 | - | 4.39 | 12,963 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,487 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,890 |
| States of Germany | 0 | - | 4.95 | 152,715 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,089 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,304 |
| Regions of Italy | 0 | - | 4.92 | 75,951 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,297 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,168 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,221 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,040 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,247 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,028 |
| Champions League Winners | 0 | - | 4.92 | 1,007,264 |
| Geography of Russia | 0 | - | 4.57 | 21,538 |
| Countries That Border Russia | 0 | - | 4.98 | 461,869 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,233 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,736 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,456 |
| Romania Country Quiz | 0 | - | 4.63 | 53,805 |
| History of Austria | 0 | - | 4.70 | 17,866 |
| Geography of the French Empire | 0 | - | 4.45 | 27,072 |
| The French Revolution | 0 | - | 4.47 | 23,958 |
| Countries Bordering France | 0 | - | 4.83 | 402,667 |
| History of France | 0 | - | 4.59 | 57,023 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,526 |
| The Vikings! | 0 | - | 4.46 | 28,349 |
| The Portuguese Empire | 0 | - | 4.58 | 12,067 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,357 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,516 |
| Geography of the British Empire | 0 | - | 4.48 | 39,689 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,711 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,900 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,163 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,067 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,400 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,954 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,208 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,216 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,769 |
| Russia Country Quiz | 0 | - | 4.83 | 114,528 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,636 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,049 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,703 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,819 |
| Departments of France | 0 | - | 4.93 | 54,190 |
| Germany Country Quiz | 0 | - | 4.83 | 157,919 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,394 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,012 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,920 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,069 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,447 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,095 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,344 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,559 |
| History of The Netherlands | 0 | - | 4.46 | 17,441 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,962 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,718 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,686 |
| Medieval English History | 0 | - | 4.53 | 43,525 |
| England or Wales? | 0 | - | 4.94 | 45,717 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,460 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,700,269 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,830 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,226 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,698 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,124 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,411 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,055 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,477 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,113 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,220 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,303 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,737 |
| Poland Country Quiz | 0 | - | 4.20 | 63,305 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,002 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,733 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,906 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,737 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,369 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,431 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,783 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,345 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,885 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,200 |
| French History Multiple Choice | 0 | - | 4.55 | 33,049 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,488 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,833 |
| History of Germany | 0 | - | 4.39 | 52,834 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,711 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,672 |
| Counties of Ireland | 0 | - | 4.92 | 195,455 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,883 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,099 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,759 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,946 |
| Roman Names for Places | 0 | - | 4.62 | 58,310 |
| Byzantine History | 0 | - | 4.91 | 28,875 |
| Byzantine Emperors | 0 | - | 4.92 | 14,205 |
| History of Spain | 0 | - | 4.23 | 21,093 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,178 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,047 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,882 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,754 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,802 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,158 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,686 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,163 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,970 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,238 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,688 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,873 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 401,611 |
| Malta Country Quiz | 0 | - | 4.81 | 31,070 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,285 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,467 |
| European Cities Beginning with B - Click Map | 0 | - | 4.78 | 78,214 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,132 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,703 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,309 |
| Russian History A-Z | 0 | - | 4.38 | 31,744 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,854 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,092 |
| French Inventions | 0 | - | 4.08 | 13,899 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,245 |
| History of Paris | 0 | - | 4.24 | 13,653 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,492 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,068 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,151 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,107 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,516 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,612 |
