| Olympian Gods Quiz | 0 | - | 4.96 | 502,230 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,316 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,601 |
| Ancient Greek Words | 0 | - | 4.93 | 112,034 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,058 |
| The Trojan War | 0 | - | 4.83 | 39,843 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,391 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,663 |
| Roman History by Picture | 0 | - | 4.46 | 26,519 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,941 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,710 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,865 |
| Byzantine History | 0 | - | 4.91 | 28,939 |
| Byzantine Emperors | 0 | - | 4.92 | 14,412 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,732 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,578 |
| Name that Greek Letter | 0 | - | 4.93 | 324,325 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,302 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,319 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,949 |
| Roman Emperors | 0 | - | 4.95 | 120,521 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,249 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,855 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,884 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,216 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,423 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,224 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,992 |
| Regions of Italy | 0 | - | 4.92 | 76,407 |
| History of Italy | 0 | - | 4.55 | 32,082 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,349 |
| Roman to Greek God | 0 | - | 4.52 | 123,079 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,795 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,636 |
| Name the English Monarchs | 0 | - | 4.91 | 504,476 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,264 |
| Mythology A-Z | 0 | - | 4.31 | 37,310 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 56,803 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,060 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,456 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,598 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,499 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,629 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,461 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,703 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,288 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,909 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 41,514 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,043 |
| Roman Names for Places | 0 | - | 4.62 | 58,481 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,473 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,314 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,182 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,541 |
| Premier League Relegated Teams | 0 | - | 4.81 | 127,111 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,822 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,265 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,691 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,889 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,038 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,546 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,665 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,456 |
| The Only European Country ... | 0 | - | 4.91 | 217,707 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,626 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,815 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,785 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,688 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,493 |
| Slavic Countries | 0 | - | 4.96 | 111,988 |
| History of Russia Quiz | 0 | - | 4.47 | 31,970 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,724 |
| Italy A-Z | 0 | - | 4.49 | 58,498 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,744 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,322 |
| Counties of England | 0 | - | 4.97 | 799,773 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,991 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,739 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,282 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,633 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,750 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,204 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,123 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,962 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,854 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,075 |
| Monarchies of Europe | 0 | - | 4.90 | 98,440 |
| European Countries with One Border | 0 | - | 4.97 | 183,243 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,020 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,460 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,266 |
| Countries That Border Russia | 0 | - | 4.98 | 463,068 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,184 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,964 |
| Countries Bordering France | 0 | - | 4.83 | 403,810 |
| History of France | 0 | - | 4.61 | 57,343 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,318 |
| States of Germany | 0 | - | 4.95 | 153,522 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,359 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,418 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,901 |
| Italy Country Quiz | 0 | - | 4.77 | 123,704 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,135 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,213 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,511 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,636 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,478 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,230 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,424 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,969 |
| Geography of the British Empire | 0 | - | 4.48 | 39,768 |
| Champions League Winners | 0 | - | 4.92 | 1,010,820 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,711,602 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,351 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,423 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,346 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,221 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,556 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,685 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,495 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,671 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,949 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,517 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,745 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,233 |
| Countries that Border Poland | 0 | - | 4.99 | 172,695 |
| Russia Country Quiz | 0 | - | 4.83 | 114,780 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,021 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,755 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,529 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,484 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,442 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,730 |
| History of Austria | 0 | - | 4.70 | 17,923 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,904 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,812 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,716 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,285 |
| Departments of France | 0 | - | 4.93 | 54,604 |
| Geography of the French Empire | 0 | - | 4.45 | 27,168 |
| The French Revolution | 0 | - | 4.47 | 24,076 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,992 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,310 |
| French History Multiple Choice | 0 | - | 4.55 | 33,145 |
| Germany Country Quiz | 0 | - | 4.83 | 158,310 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,733 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,588 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,112 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,968 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,741 |
| Counties of Ireland | 0 | - | 4.92 | 196,274 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,700 |
| Italian History A-Z | 0 | - | 4.21 | 17,750 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,131 |
| History of The Netherlands | 0 | - | 4.46 | 17,499 |
| The Vikings! | 0 | - | 4.46 | 28,375 |
| The Portuguese Empire | 0 | - | 4.58 | 12,087 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,174 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,338 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,247 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,496 |
| Arthurian Legend | 0 | - | 4.33 | 25,136 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,143 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,459 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,865 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,815 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,332 |
| Medieval English History | 0 | - | 4.53 | 43,589 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,231 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,017 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,850 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,058 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| England or Wales? | 0 | - | 4.94 | 45,827 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,211 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,599 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,161 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,283 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,150 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,580 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,948 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,915 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,429 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,046 |
| Germany A-Z | 0 | - | 4.56 | 62,724 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,731 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,828 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,268 |
| History of Germany | 0 | - | 4.39 | 52,912 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,856 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,379 |
| Iceland... or Ireland? | 0 | - | 4.74 | 57,124 |
| Which City in Italy? | 0 | - | 4.68 | 90,358 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,798 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,020 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,581 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,872 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,128 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,804 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,604 |
