| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,220 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,684 |
| Every African Country Shape | 0 | - | 4.90 | 86,129 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,714 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,282 |
| Africa Flags Map Quiz | 0 | - | 4.94 | 35,942 |
| Eastern Africa Map Quiz | 0 | - | 4.98 | 78,196 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,813 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,733 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 88,454 |
| Random African Countries on a Map | 0 | - | 4.99 | 293,390 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,383 |
| Random Asian Countries on a Map | 0 | - | 4.90 | 168,774 |
| Flags of Countries that Border China | 0 | - | 4.94 | 98,547 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 126,752 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,454 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,737 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,624 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,275 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,862 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,906 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,865 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,953 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,734 |
| Byzantine History | 0 | - | 4.91 | 28,621 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,888 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,294 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,797 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,255 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,040 |
| Modern Day Countries of the Mughal Empire on a Map | 0 | - | 4.42 | 33,227 |
| Pixelated United States Map | 0 | - | 4.89 | 93,488 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,654,784 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,264 |
| Every European Country Shape | 0 | - | 4.96 | 200,188 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,497 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,637 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,218 |
| Monty Python Quotes | 0 | - | 4.88 | 42,325 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,316 |
| Random Asian Flag to Country | 0 | - | 4.77 | 112,902 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,295 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,790 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,853 |
| Biggest Trading Partners - Turkey | 0 | - | 4.80 | 50,181 |
| Egypt Country Quiz | 0 | - | 4.82 | 77,037 |
| China by Picture | 0 | - | 4.51 | 62,545 |
| Random African Flag to Country | 0 | - | 4.87 | 74,218 |
| South America Flags Map Quiz | 0 | - | 4.95 | 86,630 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,783 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,473 |
| Random European Flag to Country | 0 | - | 4.89 | 180,917 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,149 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,370 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,195 |
| Ancient Greek Words | 0 | - | 4.92 | 110,705 |
| Turkmenistan Country Quiz | 0 | - | 4.81 | 25,685 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,683 |
| Japan by Picture | 0 | - | 4.45 | 29,039 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,947 |
| Random American Countries on a Map | 0 | - | 4.96 | 98,645 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,589 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,872 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,529 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,362 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,979 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,158 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 315,740 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,748 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,358 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,845 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,241 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,309 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,964 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,579 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,618 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,384 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,178 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,426 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,538 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,355 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,979 |
| Six Flags Over Texas | 0 | - | 4.79 | 63,014 |
| Shapes of Mediterranean Sea Countries | 0 | - | 4.80 | 55,601 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,583 |
| Official European Union Languages | 0 | - | 4.97 | 236,556 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,707 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,210 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,422 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,896 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,186 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,263 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,026 |
| Biggest British Empire Countries | 0 | - | 4.75 | 95,165 |
| Name the James Bond Movies | 0 | - | 4.56 | 157,451 |
| James Bond Trivia | 0 | - | 4.46 | 39,143 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,529 |
| Asia Map Quiz | 0 | - | 4.99 | 907,071 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,110 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,183 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 104,801 |
| Flags of the Middle East | 0 | - | 4.69 | 62,333 |
| Iran Country Quiz | 0 | - | 4.53 | 59,918 |
| Iraq Country Quiz | 0 | - | 4.43 | 40,692 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,607 |
| Vietnam War Countries | 0 | - | 4.83 | 93,616 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,019 |
| Countries by Founding Story | 0 | - | 4.95 | 76,541 |
| Independence from Whom | 0 | - | 4.99 | 209,692 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,751 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,998 |
| States of India | 0 | - | 4.94 | 190,076 |
| Countries of Africa | 0 | - | 5.00 | 2,508,039 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,436 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,431 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,005 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,821 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,671 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,632 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,582 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,282 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,509 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,251 |
| African East Coast | 0 | - | 4.96 | 95,057 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,117 |
| The Only African Country ... | 0 | - | 4.99 | 128,368 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,779 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,929 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,468 |
| African Island Countries | 0 | - | 4.96 | 100,794 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,667 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,072 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,112 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,697 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,298 |
| Flags of Oceania | 0 | - | 5.00 | 255,224 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,806 |
| Australian States and Territories | 0 | - | 4.96 | 140,912 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,433 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,021 |
| Australia by Picture | 0 | - | 4.41 | 28,438 |
| Australia Map Quiz | 0 | - | 4.94 | 342,500 |
| Australia True or False | 0 | - | 4.87 | 56,510 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,060 |
| Flags of North and South America | 0 | - | 4.99 | 367,281 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,158 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,167 |
| The Only American Country ... | 0 | - | 4.92 | 120,764 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,346 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,240 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,275 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,814 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,718 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,972 |
| North America Map Quiz | 0 | - | 4.98 | 244,486 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,900 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,996 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,962 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,340 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,380 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,876 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,355 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,937 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,947 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,955 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,508 |
| Presidential Actors | 0 | - | 4.36 | 19,066 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,005 |
| Presidential Middle Names | 0 | - | 4.41 | 59,712 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,742 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,385 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,823 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,746 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,175 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,425 |
| American Founding Fathers | 0 | - | 4.41 | 23,074 |
| The American Revolution | 0 | - | 4.52 | 54,058 |
| History of Florida | 0 | - | 4.45 | 9,764 |
| Movies Set in Chicago | 0 | - | 4.46 | 28,145 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,081 |
| Movies Set in Las Vegas | 0 | - | 4.13 | 32,085 |
| History of Texas | 0 | - | 4.43 | 14,554 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,500 |
| American History Quotes #1 | 0 | - | 4.37 | 95,693 |
| People on Money - United States | 0 | - | 4.31 | 63,206 |
| American History Quotes #2 | 0 | - | 4.38 | 41,226 |
| Old West History | 0 | - | 4.33 | 15,223 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,242 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,731 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,491 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,853 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,994 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,645 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,078 |
| The American Civil War | 0 | - | 4.62 | 52,162 |
| US States Quiz | 0 | - | 5.00 | 16,701,861 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,280 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,946 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,985 |
