| The Trojan War | 0 | - | 4.83 | 39,786 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,166 |
| Name the English Monarchs | 0 | - | 4.91 | 503,730 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,267 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 42,032 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,468 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,166 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,636 |
| Roman Emperors | 0 | - | 4.95 | 120,329 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,431 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,684 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,163 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,034 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,276 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,102 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,570 |
| Countries Bordering France | 0 | - | 4.83 | 403,419 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,517 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,847 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,563 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,756 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,078 |
| Departments of France | 0 | - | 4.93 | 54,407 |
| Germany Country Quiz | 0 | - | 4.83 | 158,131 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,575 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,615 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,272 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,603 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,085 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,104 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,931 |
| England or Wales? | 0 | - | 4.94 | 45,783 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,866 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,843 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,629 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,953 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,266 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,247 |
| Counties of Ireland | 0 | - | 4.92 | 195,923 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,003 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,292 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,531 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,307 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,194 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,779 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,973 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,691 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,064 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,945 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,635 |
| Name that Greek Letter | 0 | - | 4.93 | 324,107 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,828 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,402 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,627 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,008 |
| Finland Country Quiz | 0 | - | 4.50 | 59,770 |
| Norway Country Quiz | 0 | - | 4.44 | 77,477 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,227 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,714 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,482 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,047 |
| Medieval English History | 0 | - | 4.53 | 43,563 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,480 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,951 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,617 |
| The Only European Country ... | 0 | - | 4.91 | 217,284 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,508 |
| History of Russia Quiz | 0 | - | 4.47 | 31,945 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,701 |
| History of Italy | 0 | - | 4.55 | 32,044 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,782 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,986 |
| Roman Names for Places | 0 | - | 4.62 | 58,387 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,714 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,409 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,973 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,291 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,943 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,838 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,748 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,200 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,995 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,529 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,247,801 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,428 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,879 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,392 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,272 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,333 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,133 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,736 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,521 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,363 |
| Slavic Countries | 0 | - | 4.96 | 111,850 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,710 |
| Ancient Greek Words | 0 | - | 4.93 | 111,855 |
| Counties of England | 0 | - | 4.97 | 798,548 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,878 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,017 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,544 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,168 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,835 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,258 |
| Sweden Country Quiz | 0 | - | 4.35 | 68,289 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,041 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,297 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,727 |
| History of Scotland | 0 | - | 4.51 | 21,121 |
| Champions League Winners | 0 | - | 4.91 | 1,009,416 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,018 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,797 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,646 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,958 |
| Monarchies of Europe | 0 | - | 4.90 | 98,319 |
| European Countries with One Border | 0 | - | 4.97 | 183,066 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,847 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 84,073 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,915 |
| Countries That Border Russia | 0 | - | 4.98 | 462,693 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,060 |
| History of Austria | 0 | - | 4.70 | 17,899 |
| Austria Country Quiz | 0 | - | 4.57 | 59,824 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,917 |
| France Country Quiz | 0 | - | 4.70 | 135,146 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,751 |
| Geography of the French Empire | 0 | - | 4.45 | 27,151 |
| The French Revolution | 0 | - | 4.47 | 24,053 |
| Kings of France Quiz | 0 | - | 4.20 | 32,805 |
| History of France | 0 | - | 4.59 | 57,240 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,099 |
| States of Germany | 0 | - | 4.95 | 153,080 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,242 |
| Greece Country Quiz | 0 | - | 4.74 | 66,350 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,518 |
| Regions of Italy | 0 | - | 4.92 | 76,182 |
| Italy Country Quiz | 0 | - | 4.77 | 123,571 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,202 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,815 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,557 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,632 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,385 |
| The Vikings! | 0 | - | 4.46 | 28,367 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,203 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,999 |
| The Portuguese Empire | 0 | - | 4.58 | 12,081 |
| Spain Country Quiz | 0 | - | 4.44 | 128,745 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,315 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,438 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,376 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,120 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,136 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,763 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,398 |
| English Royal Consorts | 0 | - | 4.38 | 37,401 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,638 |
| Geography of the British Empire | 0 | - | 4.48 | 39,733 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,740 |
| Counties of Wales | 0 | - | 4.63 | 39,373 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,056 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,274 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,204 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,812 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,292 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,543 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,851 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,983 |
| Russia Country Quiz | 0 | - | 4.83 | 114,667 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,448 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,405 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,852 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,587 |
| History of Ireland | 0 | - | 4.39 | 31,268 |
| Byzantine History | 0 | - | 4.91 | 28,907 |
| Byzantine Emperors | 0 | - | 4.92 | 14,340 |
| History of The Netherlands | 0 | - | 4.46 | 17,474 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,224 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,515 |
| UK Immigration by Country | 0 | - | 4.94 | 141,118 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,114 |
| British Monopoly Board | 0 | - | 4.52 | 41,190 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,921 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,706,706 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,026 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,262 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,175 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,670 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,492 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,515 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,592 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,325 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,385 |
| Countries that Border Poland | 0 | - | 4.99 | 172,560 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,959 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,020 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,401 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,392 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,918 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,874 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,628 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,043 |
