| Two Letter Roman Numerals | 0 | - | 4.97 | 56,525 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,875 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,915 |
| Byzantine History | 0 | - | 4.91 | 29,027 |
| Byzantine Emperors | 0 | - | 4.93 | 14,610 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,020 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,608 |
| Roman Emperors | 0 | - | 4.95 | 121,258 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,790 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,724 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,869 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,978 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,926 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,466 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,415 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,563 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,831 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,883 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,616 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 112,755 |
| Ancient Greek Words | 0 | - | 4.93 | 112,516 |
| Regions of Italy | 0 | - | 4.92 | 77,125 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,309 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,219 |
| Roman Names for Places | 0 | - | 4.62 | 58,721 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,000 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,270 |
| History of Italy | 0 | - | 4.55 | 32,156 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,752 |
| Roman History by Picture | 0 | - | 4.46 | 26,595 |
| Name the English Monarchs | 0 | - | 4.91 | 506,692 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,263 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,157 |
| Name that Greek Letter | 0 | - | 4.93 | 325,049 |
| Mythology A-Z | 0 | - | 4.31 | 37,403 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,270 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,424 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,476 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,015 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,759 |
| The Trojan War | 0 | - | 4.83 | 40,002 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,003 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,615 |
| Countries Italy Declared War On | 0 | - | 4.75 | 44,947 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,202 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,182 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,267 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 494,758 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,895 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,301 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,216 |
| The Only European Country ... | 0 | - | 4.91 | 219,156 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,589 |
| Roman to Greek God | 0 | - | 4.52 | 123,363 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,367 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,839 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,232 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,397 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,835 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,334 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,806 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,003 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,595 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,111 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,909 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,802 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,839 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,985 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,470 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,541 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,223 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,816 |
| Slavic Countries | 0 | - | 4.96 | 112,406 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,625 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 88,055 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,430 |
| Counties of England | 0 | - | 4.97 | 803,211 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,103 |
| Lord of the Rings Decoder | 0 | - | 4.61 | 42,794 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,653 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,886 |
| Champions League Winners | 0 | - | 4.92 | 1,016,529 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 104,623 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,205 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,003 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,941 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,834 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,863 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,565 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,640 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,502 |
| Monarchies of Europe | 0 | - | 4.90 | 98,902 |
| European Countries with One Border | 0 | - | 4.97 | 183,850 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,573 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,959 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,985 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,918 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,990 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,771 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,933 |
| Russia Country Quiz | 0 | - | 4.83 | 115,337 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,593 |
| Countries That Border Russia | 0 | - | 4.98 | 464,582 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,764 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,494 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,601 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,949 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,676 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,842 |
| Departments of France | 0 | - | 4.93 | 55,214 |
| Geography of the French Empire | 0 | - | 4.45 | 27,220 |
| The French Revolution | 0 | - | 4.47 | 24,149 |
| Countries Bordering France | 0 | - | 4.83 | 405,001 |
| History of France | 0 | - | 4.61 | 57,642 |
| Germany Country Quiz | 0 | - | 4.82 | 158,876 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,843 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,097 |
| States of Germany | 0 | - | 4.95 | 154,603 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,561 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,712 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,933 |
| Countries of the German Empire | 0 | - | 4.51 | 38,252 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,246 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,051 |
| Italy Country Quiz | 0 | - | 4.77 | 124,081 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,080 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,167 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,820 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,517 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,366 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,892 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,780 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,550 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,826 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,467 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,280 |
| Geography of the British Empire | 0 | - | 4.48 | 39,849 |
| Medieval English History | 0 | - | 4.53 | 43,661 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,887 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| England or Wales? | 0 | - | 4.94 | 45,977 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,961 |
| Countries of the Popes | 0 | - | 4.79 | 128,763 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,210 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,017 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,568 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,115 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,035 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,820 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,363 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,745 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,969 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,119 |
| Countries that Border Poland | 0 | - | 4.99 | 173,206 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,286 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,634 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,935 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,022 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,115 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,099 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,961 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,158 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,494 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,719 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,355 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,730 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,571 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,336 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,854 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 57,016 |
| Counties of Ireland | 0 | - | 4.92 | 197,390 |
| Italy A-Z | 0 | - | 4.49 | 58,771 |
| Italian History A-Z | 0 | - | 4.16 | 17,940 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,174 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,897 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,316 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,167 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,364 |
| Arthurian Legend | 0 | - | 4.33 | 25,178 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,108 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,447 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 34,503 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 379,715 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,976 |
| British History A-Z #1 | 0 | - | 4.45 | 47,274 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,967 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,099 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,328 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,093 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,073 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,482 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,874 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,082 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,319 |
