| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,406 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,354 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,980 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,609 |
| Every African Country Shape | 0 | - | 4.90 | 88,148 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,108 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,269 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,763 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,822 |
| Africa Flags Map Quiz | 0 | - | 4.95 | 36,775 |
| Eastern Africa Map Quiz | 0 | - | 4.98 | 79,423 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,213 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,738 |
| Flags of Countries that Border China | 0 | - | 4.94 | 100,005 |
| Random African Countries on a Map | 0 | - | 4.99 | 297,509 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,142 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,572 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,210 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,483 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,497 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,207 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,143 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,875 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,554 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,675 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,400 |
| Byzantine History | 0 | - | 4.91 | 28,997 |
| Byzantine Emperors | 0 | - | 4.93 | 14,525 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,652 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,526 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,138 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,746 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,366 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,985 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,365 |
| Pixelated United States Map | 0 | - | 4.88 | 94,694 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,720,143 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,600 |
| Every European Country Shape | 0 | - | 4.96 | 202,680 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,311 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,493 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,589 |
| Monty Python Quotes | 0 | - | 4.89 | 42,585 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,088 |
| Random Asian Flag to Country | 0 | - | 4.70 | 113,971 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,108 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,969 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,023 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,859 |
| China by Picture | 0 | - | 4.51 | 63,608 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.43 | 33,805 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 90,102 |
| South America Flags Map Quiz | 0 | - | 4.95 | 88,730 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,086 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,132 |
| Random European Flag to Country | 0 | - | 4.90 | 183,930 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,656 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,742 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,167 |
| Ancient Greek Words | 0 | - | 4.93 | 112,294 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 26,112 |
| Countries that Beat Egypt | 0 | - | 4.91 | 66,694 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,440 |
| Japan by Picture | 0 | - | 4.45 | 29,390 |
| Random African Flag to Country | 0 | - | 4.88 | 75,505 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,059 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,255 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,454 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,025 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,938 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,771 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,872 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,155 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,155 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,239 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,422 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,059 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,798 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,472 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,224 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,436 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,636 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,688 |
| Africa Map with Random Merged Countries | 0 | - | 4.94 | 74,227 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,269 |
| Australian Capitals | 0 | - | 4.92 | 62,811 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,495 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,563 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,341 |
| Shapes of Mediterranean Sea Countries | 0 | - | 4.80 | 56,039 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,605 |
| Official European Union Languages | 0 | - | 4.97 | 239,513 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,500 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,364 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,890 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,079 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,321 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,398 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 52,069 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,290 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,384 |
| Name the James Bond Movies | 0 | - | 4.56 | 159,255 |
| James Bond Trivia | 0 | - | 4.46 | 39,373 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,339 |
| Asia Map Quiz | 0 | - | 4.99 | 923,546 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,379 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,583 |
| Top 10 Richest Countries in Asia | 0 | - | 4.69 | 106,339 |
| Flags of the Middle East | 0 | - | 4.69 | 62,787 |
| Iran Country Quiz | 0 | - | 4.49 | 60,608 |
| Iraq Country Quiz | 0 | - | 4.43 | 41,098 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,864 |
| Vietnam War Countries | 0 | - | 4.82 | 94,522 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,613 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,532 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,104 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,901 |
| Countries by Founding Story | 0 | - | 4.95 | 77,669 |
| Independence from Whom | 0 | - | 4.99 | 212,745 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,215 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,754 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,478 |
| Flags of Oceania | 0 | - | 5.00 | 262,035 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,320 |
| Australian States and Territories | 0 | - | 4.96 | 142,679 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,347 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,453 |
| Australia by Picture | 0 | - | 4.41 | 28,727 |
| Australia Map Quiz | 0 | - | 4.95 | 345,866 |
| Australia True or False | 0 | - | 4.87 | 57,088 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,904 |
| Flags of North and South America | 0 | - | 4.99 | 376,106 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,885 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,667 |
| The Only American Country ... | 0 | - | 4.92 | 122,086 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,545 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,475 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,657 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,720 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,398 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,435 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,674 |
| North America Map Quiz | 0 | - | 4.98 | 251,022 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,055 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,764 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,792 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,646 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,935 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,833 |
| Names of Generations | 0 | - | 4.09 | 45,425 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,694 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,265 |
| Topological Map of the USA Quiz | 0 | - | 4.49 | 29,239 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,237 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,154 |
| Presidential Actors | 0 | - | 4.36 | 19,233 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,490 |
| Presidential Middle Names | 0 | - | 4.41 | 60,641 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,583 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,983 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,840 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,166 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,592 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,479 |
| American Founding Fathers | 0 | - | 4.42 | 23,265 |
| The American Revolution | 0 | - | 4.52 | 54,330 |
| History of Florida | 0 | - | 4.45 | 9,866 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,225 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,842 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,170 |
| History of Texas | 0 | - | 4.43 | 14,679 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,191 |
| American History Quotes #1 | 0 | - | 4.37 | 96,172 |
| People on Money - United States | 0 | - | 4.31 | 63,416 |
| American History Quotes #2 | 0 | - | 4.38 | 41,487 |
| Old West History | 0 | - | 4.34 | 15,292 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,566 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,181 |
| Events in U.S. History | 0 | - | 4.41 | 28,788 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,530 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,975 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,179 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,767 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,320 |
| The American Civil War | 0 | - | 4.62 | 52,596 |
| US States Quiz | 0 | - | 5.00 | 16,969,006 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,349 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,400 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,411 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,479 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,561 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,409 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,854 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,108 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,402 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,582 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,848 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,598 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,095 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,243 |
