| Monarchies of Europe | 0 | - | 4.90 | 97,306 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,491 |
| Name the English Monarchs | 0 | - | 4.92 | 497,862 |
| Counties of England | 0 | - | 4.97 | 789,145 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,328 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,245 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,941 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,415 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,405 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,109 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,018 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,115 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,680 |
| States of Germany | 0 | - | 4.96 | 150,029 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,008 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,520 |
| Regions of Italy | 0 | - | 4.92 | 74,717 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,809 |
| History of The Netherlands | 0 | - | 4.46 | 17,311 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,332 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,140 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,907 |
| Monarchies of Asia | 0 | - | 4.97 | 70,597 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,123 |
| Kings of France Quiz | 0 | - | 4.20 | 32,553 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,242 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,117 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,143 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,520 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,161 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,185 |
| Departments of France | 0 | - | 4.93 | 52,806 |
| Germany Country Quiz | 0 | - | 4.82 | 156,538 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,141 |
| Italy Country Quiz | 0 | - | 4.82 | 122,197 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,372 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,074 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,366 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,949 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,634 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,045 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,269 |
| England or Wales? | 0 | - | 4.94 | 45,316 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,193 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,216 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,173 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,770 |
| Geography of the British Empire | 0 | - | 4.48 | 39,471 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,250 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,393 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,862 |
| Name that Greek Letter | 0 | - | 4.94 | 321,650 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,463 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,324 |
| Malta Country Quiz | 0 | - | 4.81 | 30,825 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,972 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,299 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,544 |
| The Only European Country ... | 0 | - | 4.91 | 213,820 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,526 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,771 |
| The Trojan War | 0 | - | 4.83 | 39,425 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,768 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,532 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,043 |
| Roman Emperors | 0 | - | 4.95 | 118,482 |
| British Acronyms | 0 | - | 4.39 | 45,619 |
| Medieval English History | 0 | - | 4.53 | 43,316 |
| History of Russia Quiz | 0 | - | 4.49 | 31,791 |
| French History Multiple Choice | 0 | - | 4.55 | 32,878 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,280 |
| History of Italy | 0 | - | 4.55 | 31,814 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,481 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,980 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,387 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,291 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,952 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,831 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,948 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,090 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,532 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,399 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,898 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,838 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,705 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,214 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,884 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,668 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,625 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,021 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,304 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,733 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,594 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,713 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,285 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,311 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,463 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,744 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,821 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,871 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,255 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,197 |
| Slavic Countries | 0 | - | 4.96 | 110,853 |
| Regions of France | 0 | - | 4.78 | 119,238 |
| France Immigration by Country | 0 | - | 4.72 | 75,963 |
| Famous Germans | 0 | - | 4.50 | 54,611 |
| History of Germany | 0 | - | 4.39 | 52,614 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,464 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,087 |
| Ancient Greek Words | 0 | - | 4.92 | 110,686 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,465 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,796 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,954 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,386 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,686 |
| British History A-Z #1 | 0 | - | 4.45 | 45,806 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,073 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,899 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,322 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,036 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,385 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,848 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,214 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,803 |
| European Countries with One Border | 0 | - | 4.97 | 181,619 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,519 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,782 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,965 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,194 |
| French Inventions | 0 | - | 4.08 | 13,865 |
| History of Paris | 0 | - | 4.24 | 13,615 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,460 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,984 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,041 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,528 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,614 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,119 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,076 |
| People on Money - England | 0 | - | 4.29 | 16,563 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,121 |
| History of Scotland | 0 | - | 4.51 | 21,002 |
| Champions League Winners | 0 | - | 4.92 | 996,302 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,995 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,431 |
| Battle to Country | 0 | - | 4.91 | 52,517 |
| Countries That Border Russia | 0 | - | 4.98 | 458,899 |
| History of Austria | 0 | - | 4.70 | 17,746 |
| Austria Country Quiz | 0 | - | 4.57 | 59,337 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,229 |
| France Country Quiz | 0 | - | 4.70 | 133,824 |
| Geography of the French Empire | 0 | - | 4.48 | 26,933 |
| The French Revolution | 0 | - | 4.46 | 23,784 |
| Countries Bordering France | 0 | - | 4.83 | 399,031 |
| History of France | 0 | - | 4.59 | 56,037 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,383 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,033 |
| Greece Country Quiz | 0 | - | 4.74 | 65,754 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,480 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,241 |
| Netherlands Country Quiz | 0 | - | 4.50 | 79,957 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,753 |
| The Vikings! | 0 | - | 4.45 | 28,245 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,694 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,333 |
| The Portuguese Empire | 0 | - | 4.54 | 11,990 |
| Spain Country Quiz | 0 | - | 4.45 | 127,604 |
| Switzerland Country Quiz | 0 | - | 4.51 | 62,935 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,562 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,172 |
| English Royal Consorts | 0 | - | 4.37 | 37,162 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,609 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,405 |
| Counties of Wales | 0 | - | 4.63 | 38,898 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,890 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,094 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,083 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,526 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,214 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,589 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,900 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,273 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,486 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,164 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,917 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,294 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,509 |
| European Geography A-Z | 0 | - | 4.28 | 48,997 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,198 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,768 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,242 |
| Russia Country Quiz | 0 | - | 4.85 | 113,627 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,847 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,036 |
| German History A-Z | 0 | - | 4.49 | 24,218 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,936 |
| History of Ireland | 0 | - | 4.39 | 30,822 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,948 |
| The Mafia Quiz | 0 | - | 4.46 | 23,206 |
| Canary Islands | 0 | - | 4.61 | 17,402 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,846 |
