| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,596 |
| Roman Emperors | 0 | - | 4.95 | 120,224 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,565 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,769 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,970 |
| Roman Names for Places | 0 | - | 4.62 | 58,352 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,524 |
| Name the English Monarchs | 0 | - | 4.91 | 503,359 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,918 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,188 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,208 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,972 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,377 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,194 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,120 |
| The Trojan War | 0 | - | 4.83 | 39,767 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,022 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,575 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,572 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 82,747 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,874 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,176 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,017 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,388 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,038 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,935 |
| Regions of Italy | 0 | - | 4.92 | 76,078 |
| History of Italy | 0 | - | 4.55 | 32,022 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,372 |
| Europe Map Quiz | 0 | - | 5.00 | 4,766,964 |
| Countries Bordering France | 0 | - | 4.83 | 402,864 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,681 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,689 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,531 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,732 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,934 |
| Departments of France | 0 | - | 4.93 | 54,275 |
| Germany Country Quiz | 0 | - | 4.83 | 158,019 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,480 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,179 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,555 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,210 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,020 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,797 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,799 |
| England or Wales? | 0 | - | 4.94 | 45,749 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,580 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,812 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,378 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,910 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,228 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,049 |
| Counties of Ireland | 0 | - | 4.92 | 195,638 |
| Italy Country Quiz | 0 | - | 4.80 | 123,506 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,187 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,047 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,738 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,915 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,598 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,512 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,181 |
| Name that Greek Letter | 0 | - | 4.93 | 323,992 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,247 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,423 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,006 |
| Medieval English History | 0 | - | 4.53 | 43,553 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,018 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,293 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,757 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,456 |
| The Only European Country ... | 0 | - | 4.91 | 217,025 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,362 |
| History of Russia Quiz | 0 | - | 4.47 | 31,940 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,768 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,237 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,106 |
| Byzantine History | 0 | - | 4.91 | 28,893 |
| Byzantine Emperors | 0 | - | 4.92 | 14,276 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,696 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,270 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,911 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,822 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,729 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,184 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,985 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,423 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,246,303 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,729 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,786 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,312 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,027 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,262 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,871 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,368 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,423 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,302 |
| Slavic Countries | 0 | - | 4.96 | 111,774 |
| Ancient Greek Words | 0 | - | 4.93 | 111,763 |
| Italian History A-Z | 0 | - | 4.21 | 17,728 |
| Counties of England | 0 | - | 4.97 | 797,910 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,098 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,986 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,443 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,160 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,520 |
| Geography of Rome | 0 | - | 4.51 | 16,673 |
| Rome City Trivia | 0 | - | 4.49 | 20,680 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,872 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,282 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,676 |
| History of Scotland | 0 | - | 4.51 | 21,110 |
| Champions League Winners | 0 | - | 4.92 | 1,008,300 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,175 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,966 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,697 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,515 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,885 |
| Monarchies of Europe | 0 | - | 4.90 | 98,241 |
| European Countries with One Border | 0 | - | 4.97 | 182,951 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,730 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,739 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,645 |
| Countries That Border Russia | 0 | - | 4.98 | 462,088 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,981 |
| History of Austria | 0 | - | 4.70 | 17,880 |
| Austria Country Quiz | 0 | - | 4.57 | 59,796 |
| Belgium Country Quiz | 0 | - | 4.73 | 71,869 |
| France Country Quiz | 0 | - | 4.70 | 135,078 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,613 |
| Geography of the French Empire | 0 | - | 4.45 | 27,130 |
| The French Revolution | 0 | - | 4.47 | 24,030 |
| Kings of France Quiz | 0 | - | 4.20 | 32,774 |
| History of France | 0 | - | 4.59 | 57,146 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,971 |
| States of Germany | 0 | - | 4.95 | 152,880 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,163 |
| Greece Country Quiz | 0 | - | 4.74 | 66,329 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,118 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,792 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,540 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,580 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,293 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,500 |
| The Vikings! | 0 | - | 4.46 | 28,357 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,173 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,959 |
| The Portuguese Empire | 0 | - | 4.58 | 12,076 |
| Spain Country Quiz | 0 | - | 4.44 | 128,665 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,157 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,410 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,295 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,066 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,090 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,753 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,376 |
| English Royal Consorts | 0 | - | 4.38 | 37,392 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,582 |
| Geography of the British Empire | 0 | - | 4.48 | 39,719 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,724 |
| Counties of Wales | 0 | - | 4.63 | 39,335 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,976 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,224 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,132 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,593 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,120 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,350 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,529 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,880 |
| Russia Country Quiz | 0 | - | 4.83 | 114,588 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,412 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,381 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,832 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,810 |
| History of Ireland | 0 | - | 4.39 | 31,240 |
| History of The Netherlands | 0 | - | 4.46 | 17,450 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,964 |
| Finland Country Quiz | 0 | - | 4.50 | 59,724 |
| Norway Country Quiz | 0 | - | 4.44 | 77,427 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,201 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,136 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,477 |
| UK Immigration by Country | 0 | - | 4.94 | 141,031 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,004 |
| British Monopoly Board | 0 | - | 4.52 | 41,182 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,699 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,703,711 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,932 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,241 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,147 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,667 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,449 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,289 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,546 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,208 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,289 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,333 |
| Countries that Border Poland | 0 | - | 4.99 | 172,394 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,909 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,950 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,216 |
