| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,726 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,164 |
| Every African Country Shape | 0 | - | 4.90 | 87,084 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,596 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,581 |
| Africa Flags Map Quiz | 0 | - | 4.95 | 36,329 |
| Eastern Africa Map Quiz | 0 | - | 4.98 | 78,801 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,651 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,504 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,120 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,106 |
| Random African Countries on a Map | 0 | - | 4.99 | 295,413 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,773 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 169,791 |
| Flags of Countries that Border China | 0 | - | 4.94 | 99,088 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,395 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,850 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,616 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,924 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,884 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,184 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,650 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,489 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,938 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,043 |
| Byzantine History | 0 | - | 4.91 | 28,761 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,784 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,285 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,409 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 132,831 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,687 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.42 | 33,550 |
| Pixelated United States Map | 0 | - | 4.87 | 94,107 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,690,109 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,575 |
| Every European Country Shape | 0 | - | 4.96 | 201,386 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,201 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,528 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,400 |
| Monty Python Quotes | 0 | - | 4.88 | 42,438 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,221 |
| Random Asian Flag to Country | 0 | - | 4.70 | 113,346 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,177 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,170 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,260 |
| Egypt Country Quiz | 0 | - | 4.83 | 77,437 |
| China by Picture | 0 | - | 4.51 | 63,085 |
| Random African Flag to Country | 0 | - | 4.88 | 74,714 |
| South America Flags Map Quiz | 0 | - | 4.95 | 87,654 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,027 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,289 |
| Random European Flag to Country | 0 | - | 4.89 | 182,061 |
| Flags of Countries That Border France | 0 | - | 4.88 | 122,745 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,891 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,751 |
| Ancient Greek Words | 0 | - | 4.93 | 111,402 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 25,934 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,095 |
| Japan by Picture | 0 | - | 4.45 | 29,209 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,361 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,337 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,185 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,436 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,915 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,958 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,144 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,973 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,623 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,111 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,293 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,458 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,634 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,547 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,533 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,461 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,025 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,506 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,397 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,248 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,944 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,922 |
| Australian Capitals | 0 | - | 4.92 | 62,702 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,679 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,291 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,956 |
| Shapes of Mediterranean Sea Countries | 0 | - | 4.80 | 55,812 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,025 |
| Official European Union Languages | 0 | - | 4.97 | 238,208 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,659 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,637 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,658 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,484 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,118 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,345 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,637 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,129 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,806 |
| Name the James Bond Movies | 0 | - | 4.56 | 158,365 |
| James Bond Trivia | 0 | - | 4.46 | 39,250 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,022 |
| Asia Map Quiz | 0 | - | 4.99 | 914,968 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,761 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,386 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 105,558 |
| Flags of the Middle East | 0 | - | 4.69 | 62,569 |
| Iran Country Quiz | 0 | - | 4.51 | 60,284 |
| Iraq Country Quiz | 0 | - | 4.43 | 40,892 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,725 |
| Vietnam War Countries | 0 | - | 4.82 | 94,106 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,005 |
| Countries by Founding Story | 0 | - | 4.95 | 77,088 |
| Independence from Whom | 0 | - | 4.99 | 211,365 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,741 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,396 |
| States of India | 0 | - | 4.95 | 192,750 |
| Countries of Africa | 0 | - | 5.00 | 2,531,365 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,901 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,625 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,298 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,659 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,314 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,724 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,433 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,054 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,125 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,683 |
| African East Coast | 0 | - | 4.96 | 95,866 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,247 |
| The Only African Country ... | 0 | - | 4.99 | 128,977 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,073 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,673 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,756 |
| African Island Countries | 0 | - | 4.96 | 101,472 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,125 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,702 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,034 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,151 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,829 |
| Flags of Oceania | 0 | - | 5.00 | 258,345 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,508 |
| Australian States and Territories | 0 | - | 4.96 | 141,740 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 145,246 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,241 |
| Australia by Picture | 0 | - | 4.41 | 28,574 |
| Australia Map Quiz | 0 | - | 4.95 | 343,918 |
| Australia True or False | 0 | - | 4.87 | 56,791 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,479 |
| Flags of North and South America | 0 | - | 4.99 | 372,160 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,532 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,118 |
| The Only American Country ... | 0 | - | 4.92 | 121,439 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,971 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,453 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,720 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,613 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,018 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,743 |
| North America Map Quiz | 0 | - | 4.98 | 247,852 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,567 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,918 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,379 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,228 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,669 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,359 |
| Names of Generations | 0 | - | 4.10 | 44,379 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,510 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,089 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,567 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,293 |
| Presidential Actors | 0 | - | 4.36 | 19,157 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,639 |
| Presidential Middle Names | 0 | - | 4.41 | 60,131 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,210 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,687 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,471 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,949 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,368 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,891 |
| American Founding Fathers | 0 | - | 4.42 | 23,204 |
| The American Revolution | 0 | - | 4.52 | 54,224 |
| History of Florida | 0 | - | 4.45 | 9,814 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,186 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,790 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,130 |
| History of Texas | 0 | - | 4.43 | 14,608 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,839 |
| American History Quotes #1 | 0 | - | 4.37 | 95,974 |
| People on Money - United States | 0 | - | 4.31 | 63,326 |
| American History Quotes #2 | 0 | - | 4.38 | 41,379 |
| Old West History | 0 | - | 4.33 | 15,260 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,418 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,002 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,517 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,917 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,094 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,708 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,219 |
| The American Civil War | 0 | - | 4.62 | 52,383 |
| US States Quiz | 0 | - | 5.00 | 16,839,520 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,673 |
