| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 57,249 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 38,853 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 82,356 |
| Counties of England | 0 | - | 4.97 | 759,634 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 144,154 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 71,303 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 58,721 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 66,480 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 52,902 |
| Regions of France Map Quiz | 0 | - | 4.96 | 137,920 |
| States of Germany Map Quiz | 0 | - | 4.91 | 127,852 |
| States of Germany | 0 | - | 4.95 | 140,771 |
| Germany Immigration by Country | 0 | - | 4.86 | 76,824 |
| States of the German Confederation in 1848 | 0 | - | 4.86 | 29,833 |
| Counties of Ireland | 0 | - | 4.90 | 178,565 |
| Regions of Italy | 0 | - | 4.91 | 69,449 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 35,716 |
| Regions of Spain Quiz | 0 | - | 4.89 | 106,283 |
| Cantons of Switzerland | 0 | - | 4.97 | 46,400 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 90,317 |
| Europe Map Quiz | 0 | - | 5.00 | 4,597,883 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,758 |
| France Cities Map Quiz | 0 | - | 4.95 | 160,070 |
| Departments of France | 0 | - | 4.90 | 46,421 |
| Germany Country Quiz | 0 | - | 4.82 | 151,611 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 121,400 |
| Italy Country Quiz | 0 | - | 4.81 | 117,949 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 143,575 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 146,916 |
| Countries Surrounding Rome | 0 | - | 4.96 | 48,460 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 93,120 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 179,729 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 111,129 |
| England or Wales? | 0 | - | 4.94 | 43,721 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 413,008 |
| History of Austria | 0 | - | 4.69 | 17,289 |
| English Monarchs Quiz | 0 | - | 4.91 | 480,408 |
| Wives of King Henry VIII | 0 | - | 4.55 | 52,601 |
| Countries the UK Declared War On | 0 | - | 4.61 | 118,747 |
| Geography of the British Empire | 0 | - | 4.51 | 38,708 |
| Andorra Country Quiz | 0 | - | 4.89 | 30,262 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 620,216 |
| Embarrassing Chapters in Italian History | 0 | - | 4.23 | 11,764 |
| Countries That Use the Euro | 0 | - | 4.93 | 77,733 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 354,147 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 106,536 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.84 | 41,055 |
| The Only European Country ... | 0 | - | 4.91 | 201,186 |
| European Countries NOT in NATO | 0 | - | 4.88 | 52,458 |
| Ancient Greek Trivia | 0 | - | 4.61 | 65,640 |
| The Trojan War | 0 | - | 4.81 | 38,128 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.84 | 104,268 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 75,598 |
| Roman Emperors | 0 | - | 4.96 | 110,805 |
| History of The Netherlands | 0 | - | 4.45 | 16,752 |
| Medieval English History | 0 | - | 4.53 | 42,574 |
| French History Multiple Choice | 0 | - | 4.55 | 32,048 |
| Name that Greek Letter | 0 | - | 4.93 | 313,089 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 116,698 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,765 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,379 |
| Invasions of Great Britain | 0 | - | 4.51 | 58,305 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,098 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,269 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.70 | 11,516 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 63,783 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,148,218 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,281,968 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 186,986 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 146,472 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 206,358 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 83,885 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 300,854 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 150,242 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 84,021 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 122,892 |
| Slavic Countries | 0 | - | 4.96 | 107,606 |
| Regions of France | 0 | - | 4.74 | 113,087 |
| France Immigration by Country | 0 | - | 4.77 | 73,936 |
| History of Germany | 0 | - | 4.38 | 51,727 |
| Largest Islands of Greece | 0 | - | 4.59 | 45,147 |
| Olympian Gods Quiz | 0 | - | 4.96 | 474,020 |
| Ancient Greek Words | 0 | - | 4.92 | 106,486 |
| Provinces of the Netherlands | 0 | - | 4.76 | 38,032 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,410 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 98,883 |
| The UK for Americans - True or False | 0 | - | 4.46 | 57,305 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,312 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 31,563 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.77 | 19,763 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 330,121 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 91,284 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 131,393 |
| Three Band Flags of Europe | 0 | - | 4.97 | 185,238 |
| Pixelated Europe Map | 0 | - | 4.88 | 117,605 |
| Monarchies of Europe | 0 | - | 4.89 | 94,058 |
| European Countries with One Border | 0 | - | 4.97 | 176,786 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 173,389 |
| European Geography By Letter - B #2 | 0 | - | 4.81 | 66,475 |
| Federal Subjects of Russia | 0 | - | 4.94 | 133,176 |
| Countries Formerly in Yugoslavia | 0 | - | 4.96 | 120,738 |
| French Inventions | 0 | - | 4.08 | 13,683 |
| History of Paris | 0 | - | 4.24 | 13,391 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 67,913 |
| Geography of Ancient Greece | 0 | - | 4.77 | 31,177 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 421,155 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 53,396 |
| UK Cities Map Quiz | 0 | - | 4.95 | 453,631 |
| Counties of England Map Quiz | 0 | - | 4.97 | 299,672 |
| History of Scotland | 0 | - | 4.51 | 20,574 |
| Champions League Winners | 0 | - | 4.92 | 959,645 |
| History of Russia Quiz | 0 | - | 4.48 | 31,266 |
| Countries That Border Russia | 0 | - | 4.98 | 448,708 |
| Austria Country Quiz | 0 | - | 4.57 | 57,699 |
| Belgium Country Quiz | 0 | - | 4.65 | 69,142 |
| France Country Quiz | 0 | - | 4.74 | 130,070 |
| Geography of the French Empire | 0 | - | 4.51 | 26,339 |
| The French Revolution | 0 | - | 4.45 | 23,040 |
| Countries Bordering France | 0 | - | 4.87 | 377,386 |
| Kings of France Quiz | 0 | - | 4.20 | 31,850 |
| History of France Quiz | 0 | - | 4.56 | 41,946 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.42 | 22,967 |
| Countries Bordering Germany | 0 | - | 4.99 | 358,365 |
| Greece Country Quiz | 0 | - | 4.74 | 63,823 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,421 |
| History of Italy | 0 | - | 4.54 | 31,209 |
| Luxembourg Country Quiz | 0 | - | 4.74 | 32,404 |
| Monaco Country Quiz | 0 | - | 4.47 | 40,132 |
| Netherlands Country Quiz | 0 | - | 4.52 | 77,721 |
| Nordic Cities Map Quiz | 0 | - | 4.75 | 88,390 |
| The Vikings! | 0 | - | 4.46 | 27,906 |
| Sweden Immigration by Country | 0 | - | 4.61 | 53,813 |
| Portugal Country Quiz | 0 | - | 4.68 | 69,158 |
| The Portuguese Empire | 0 | - | 4.54 | 11,772 |
| Spain Country Quiz | 0 | - | 4.45 | 123,655 |
| Switzerland Country Quiz | 0 | - | 4.50 | 61,066 |
| United Kingdom A-Z | 0 | - | 4.53 | 85,298 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 37,945 |
| British Geography Multiple Choice | 0 | - | 4.48 | 42,559 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,814 |
| Counties of Wales | 0 | - | 4.63 | 36,981 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 101,744 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 188,668 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 122,820 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 220,628 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 265,702 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 157,640 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 240,439 |
| Name a Valid European Country #2 | 0 | - | 4.92 | 93,549 |
| Russia Country Quiz | 0 | - | 4.84 | 110,372 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 33,797 |
| Figures from Greek Mythology | 0 | - | 4.90 | 177,201 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,050 |
| Canary Islands | 0 | - | 4.61 | 17,120 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 103,008 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 27,076 |
| British Spellings Quiz | 0 | - | 4.07 | 97,972 |
| British Groups of Things | 0 | - | 4.25 | 82,121 |
| British Acronyms | 0 | - | 4.39 | 44,950 |
| UK Immigration by Country | 0 | - | 4.94 | 135,241 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,555 |
| United Kingdom Country Quiz | 0 | - | 4.95 | 131,854 |
| Geography of Scotland | 0 | - | 4.63 | 20,842 |
| Former Dominions of the British Empire | 0 | - | 4.32 | 23,651 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 122,686 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,494,664 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 184,644 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 513,508 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 69,494 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 135,365 |
| Top 20 Football Clubs in Europe | 0 | - | 4.47 | 106,223 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 62,128 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 84,509 |
| Countries that Border Poland | 0 | - | 4.99 | 167,340 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 80,410 |
| Countries With the Most Russian Speakers | 0 | - | 4.95 | 63,486 |
| Countries that Border Hungary | 0 | - | 4.98 | 101,695 |
| Moldova Country Quiz | 0 | - | 4.81 | 29,516 |
| Countries Bordering Serbia | 0 | - | 4.96 | 89,039 |
| French Geography Quiz #1 | 0 | - | 4.88 | 33,418 |
| Countries Bordering Austria | 0 | - | 4.97 | 115,224 |
| 20 Questions About France | 0 | - | 4.16 | 32,015 |
| Countries that Visit France the Most | 0 | - | 4.83 | 43,278 |
| Countries Closest to Metropolitan France | 0 | - | 4.88 | 69,999 |
| Embarrassing Chapters in French History | 0 | - | 3.65 | 19,770 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 81,290 |
| Countries With the Most German Speakers | 0 | - | 4.85 | 59,763 |
| Embarrassing Chapters in German History | 0 | - | 3.38 | 12,279 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.57 | 62,557 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 40,582 |
| Countries Bordering Italy | 0 | - | 4.94 | 98,561 |
| Countries Closest to Italy | 0 | - | 4.97 | 191,007 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 37,110 |
| Geography of the Roman Empire | 0 | - | 4.56 | 50,640 |
| Roman Names for Places | 0 | - | 4.68 | 56,072 |
| Byzantine History | 0 | - | 4.90 | 27,772 |
| History of Spain Quiz | 0 | - | 4.29 | 20,583 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 36,445 |
| Countries Closest to Spain | 0 | - | 4.95 | 219,158 |
| Most Common Surnames in the UK | 0 | - | 4.20 | 68,389 |
