| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,715 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,512 |
| Slavic Countries | 0 | - | 4.96 | 111,230 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,735 |
| History of Russia Quiz | 0 | - | 4.49 | 31,841 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,191 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,509 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,842 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,935 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,476 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,353 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,517 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,290 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,506 |
| Name the English Monarchs | 0 | - | 4.92 | 500,004 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,754 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,642 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,330 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,821 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,878 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,176 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,269 |
| The Only European Country ... | 0 | - | 4.91 | 215,059 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,274 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,490 |
| Name that Greek Letter | 0 | - | 4.93 | 322,498 |
| The Trojan War | 0 | - | 4.83 | 39,557 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,139 |
| History of Italy | 0 | - | 4.55 | 31,894 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,269 |
| Roman Emperors | 0 | - | 4.95 | 119,216 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,559 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,712 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,805 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,258 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,287 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,122 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,681 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,363 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,748 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,262 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,398 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,035 |
| Counties of England | 0 | - | 4.97 | 792,355 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,412 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,322 |
| Ancient Greek Words | 0 | - | 4.93 | 111,083 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,747 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,608 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,342 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,895 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,471 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,222 |
| Monarchies of Europe | 0 | - | 4.90 | 97,684 |
| European Countries with One Border | 0 | - | 4.97 | 182,092 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,958 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,673 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,242 |
| Geography of Russia | 0 | - | 4.57 | 21,476 |
| History of Austria | 0 | - | 4.70 | 17,797 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,741 |
| Geography of the French Empire | 0 | - | 4.45 | 26,998 |
| The French Revolution | 0 | - | 4.46 | 23,859 |
| History of France | 0 | - | 4.59 | 56,600 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,132 |
| States of Germany | 0 | - | 4.96 | 151,031 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,373 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,130 |
| Regions of Italy | 0 | - | 4.92 | 75,180 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,828 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 45,658 |
| The Vikings! | 0 | - | 4.46 | 28,283 |
| The Portuguese Empire | 0 | - | 4.58 | 12,027 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,151 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,717 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,326 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,262 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,081 |
| Geography of the British Empire | 0 | - | 4.48 | 39,580 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,615 |
| Champions League Winners | 0 | - | 4.92 | 1,000,521 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,297 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,618 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,467 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,714 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,682 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,049 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,623 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,868 |
| Russia Country Quiz | 0 | - | 4.85 | 114,023 |
| Countries That Border Russia | 0 | - | 4.98 | 460,271 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,080 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,189 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,683 |
| Departments of France | 0 | - | 4.93 | 53,272 |
| Countries Bordering France | 0 | - | 4.83 | 401,064 |
| Germany Country Quiz | 0 | - | 4.82 | 157,148 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,533 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,972 |
| Italy Country Quiz | 0 | - | 4.82 | 122,652 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,800 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,435 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,430 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,087 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,381 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,019 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,823 |
| England or Wales? | 0 | - | 4.94 | 45,481 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,210 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,669 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,811 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,987 |
| Slavic Languages | 0 | - | 4.68 | 54,148 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,865 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,838 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,806 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,135 |
| History of The Netherlands | 0 | - | 4.46 | 17,356 |
| Medieval English History | 0 | - | 4.53 | 43,395 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,673,187 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,748 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,153 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,923 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,079 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,108 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,446 |
| Random Point on Land to European Country | 0 | - | 4.93 | 76,496 |
| Countries that Border Poland | 0 | - | 4.99 | 171,763 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,262 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,552 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,490 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,923 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,722 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,655 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,052 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,628 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,528 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,021 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,692 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,970 |
| French History Multiple Choice | 0 | - | 4.55 | 32,942 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,350 |
| History of Germany | 0 | - | 4.39 | 52,720 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,238 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,534 |
| Counties of Ireland | 0 | - | 4.92 | 193,981 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,632 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,869 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,622 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,782 |
| Roman Names for Places | 0 | - | 4.62 | 58,045 |
| Byzantine History | 0 | - | 4.91 | 28,699 |
| History of Spain | 0 | - | 4.29 | 21,043 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,081 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,197 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,450 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,724 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,681 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,110 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,460 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,043 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,892 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,537 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,031 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,995 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,983 |
| Malta Country Quiz | 0 | - | 4.81 | 30,926 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,346 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,182 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,713 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,559 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,956 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,639 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,234 |
| Russian Inventions | 0 | - | 4.39 | 12,915 |
| French Inventions | 0 | - | 4.08 | 13,875 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,860 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,800 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,736 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,075 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,066 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,119 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,133 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,942 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,651 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,116 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,178 |
| British History A-Z #1 | 0 | - | 4.45 | 46,292 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,478 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,330 |
| History of Scotland | 0 | - | 4.51 | 21,043 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,128 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,109 |
| Australian Capitals | 0 | - | 4.92 | 62,656 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,842 |
| Official European Union Languages | 0 | - | 4.97 | 237,629 |
