| Olympian Gods Quiz | 0 | - | 4.96 | 504,752 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,662 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,868 |
| Ancient Greek Words | 0 | - | 4.93 | 112,742 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,472 |
| The Trojan War | 0 | - | 4.83 | 40,126 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,366 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,752 |
| Roman History by Picture | 0 | - | 4.46 | 26,621 |
| Figures from Greek Mythology | 0 | - | 4.92 | 194,630 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,131 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,096 |
| Byzantine History | 0 | - | 4.91 | 29,066 |
| Byzantine Emperors | 0 | - | 4.93 | 14,674 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,407 |
| Name that Greek Letter | 0 | - | 4.93 | 325,418 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 127,142 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,226 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,736 |
| Roman Emperors | 0 | - | 4.95 | 121,525 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,534 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,655 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,283 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,110 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,094 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,795 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,550 |
| Regions of Italy | 0 | - | 4.92 | 77,337 |
| History of Italy | 0 | - | 4.55 | 32,200 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,699 |
| Roman to Greek God | 0 | - | 4.52 | 123,570 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,508 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,797 |
| Name the English Monarchs | 0 | - | 4.91 | 507,716 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,476 |
| Mythology A-Z | 0 | - | 4.31 | 37,469 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 57,193 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,411 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,803 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,454 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,601 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,846 |
| Countries Italy Declared War On | 0 | - | 4.77 | 50,496 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,339 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,725 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 88,431 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,417 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,284 |
| Roman Names for Places | 0 | - | 4.62 | 58,820 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,986 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,960 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 293,065 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,892 |
| Premier League Relegated Teams | 0 | - | 4.81 | 128,160 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,401 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,669 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,814 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,621 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,858 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,600 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,464 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,963 |
| The Only European Country ... | 0 | - | 4.91 | 219,796 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,366 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,804 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,940 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,448 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,965 |
| Slavic Countries | 0 | - | 4.96 | 112,569 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,648 |
| Italy A-Z | 0 | - | 4.49 | 58,896 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,867 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,485 |
| Counties of England | 0 | - | 4.97 | 804,803 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,158 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,863 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,345 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,661 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,104 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,285 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,041 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,809 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,975 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,727 |
| Monarchies of Europe | 0 | - | 4.90 | 99,100 |
| European Countries with One Border | 0 | - | 4.97 | 184,118 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,834 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,351 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,054 |
| Countries That Border Russia | 0 | - | 4.98 | 465,112 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,633 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,878 |
| Countries Bordering France | 0 | - | 4.83 | 405,526 |
| History of France | 0 | - | 4.61 | 57,771 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,069 |
| States of Germany | 0 | - | 4.95 | 155,068 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,867 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,682 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,388 |
| Italy Country Quiz | 0 | - | 4.77 | 124,279 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,187 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,278 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,975 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,689 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,971 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,701 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,498 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,417 |
| Geography of the British Empire | 0 | - | 4.48 | 39,892 |
| Champions League Winners | 0 | - | 4.92 | 1,018,756 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,733,370 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,097 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,147 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,042 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,421 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,855 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,095 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,517 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,478 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,411 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,341 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,667 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,211 |
| Countries that Border Poland | 0 | - | 4.99 | 173,409 |
| Russia Country Quiz | 0 | - | 4.83 | 115,520 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,383 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,484 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,874 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,134 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.85 | 35,675 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,258 |
| History of Austria | 0 | - | 4.70 | 17,994 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,324 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,026 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,087 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,131 |
| Departments of France | 0 | - | 4.93 | 55,486 |
| Geography of the French Empire | 0 | - | 4.45 | 27,242 |
| The French Revolution | 0 | - | 4.47 | 24,175 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,255 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,605 |
| French History Multiple Choice | 0 | - | 4.55 | 33,286 |
| Germany Country Quiz | 0 | - | 4.82 | 159,174 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,317 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,581 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,319 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,304 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,910 |
| Counties of Ireland | 0 | - | 4.92 | 197,800 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,302 |
| Italian History A-Z | 0 | - | 4.16 | 17,965 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,201 |
| History of The Netherlands | 0 | - | 4.46 | 17,582 |
| The Vikings! | 0 | - | 4.46 | 28,434 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,662 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,099 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,339 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,481 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 69,190 |
| Arthurian Legend | 0 | - | 4.33 | 25,201 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,139 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,758 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,013 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,051 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,706 |
| Medieval English History | 0 | - | 4.53 | 43,700 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,364 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,116 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,464 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,462 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| England or Wales? | 0 | - | 4.94 | 46,096 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,624 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,700 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,766 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,815 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,936 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,103 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,087 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,851 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,246 |
| Germany A-Z | 0 | - | 4.56 | 62,926 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,170 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,575 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,698 |
| History of Germany | 0 | - | 4.39 | 53,011 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,947 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,430 |
| Iceland... or Ireland? | 0 | - | 4.74 | 57,282 |
| Which City in Italy? | 0 | - | 4.68 | 90,693 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,354 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,324 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,047 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,044 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,469 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,235 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 81,137 |
