| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,663 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,837 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,918 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,217 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,510 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,193 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,093 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,289 |
| Random U.S. States on a Map | 0 | - | 4.96 | 629,983 |
| US States Quiz | 0 | - | 5.00 | 16,986,304 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,862 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,721 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,506 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,336 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,769 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,280 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,312 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,552 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,981 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,120 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,914 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,432 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,172 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,860 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,518 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,553 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,923 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,924 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,391 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,603 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,295 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,220 |
| Vietnam War Countries | 0 | - | 4.82 | 94,580 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,005 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,622 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,147 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,673 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,392 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,805 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,474 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,391 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,583 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,923 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,410 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,375 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,999 |
| Pixelated United States Map | 0 | - | 4.88 | 94,769 |
| US States with an Empty Map | 0 | - | 5.00 | 628,297 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,007 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,885 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,214 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,231 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,002 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,283 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,300 |
| U.S. States By Population | 0 | - | 4.92 | 154,093 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,167 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,856 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,237 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,028 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,116 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,821 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,518 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,060 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,687 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,173 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,646 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,800 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,624 |
| Presidential Actors | 0 | - | 4.36 | 19,245 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,846 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,801 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,284 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,235 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,352 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,664 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,071 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,565 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,131 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,900 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,903 |
| Asia Map Quiz | 0 | - | 4.99 | 924,557 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,417 |
| U.S. State Flags | 0 | - | 4.89 | 172,756 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,061 |
| Hawaiian Islands | 0 | - | 4.83 | 42,932 |
| Rivers of the United States | 0 | - | 4.93 | 66,629 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,673 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,546 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,494 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,443 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 635,311 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,799 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,429 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,168 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,776 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,179 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,341 |
| Random U.S. Presidents by Picture | 0 | - | 4.40 | 66,584 |
| Cities in European History #1 | 0 | - | 4.63 | 134,561 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,510 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,302 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,409 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,654 |
| US States and State Capitals | 0 | - | 4.99 | 165,181 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,639 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,833 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,543 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,784 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,998 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,239 |
| The Only European Country ... | 0 | - | 4.91 | 218,809 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,810 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,414 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,888 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,662 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,292 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,366 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,889 |
| Random African Countries on a Map | 0 | - | 4.99 | 297,730 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,975 |
| Countries of Africa | 0 | - | 5.00 | 2,557,832 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 84,132 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,645 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,005 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,411 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,875 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,555 |
| Australia Map Quiz | 0 | - | 4.95 | 346,059 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,100 |
| African East Coast | 0 | - | 4.96 | 96,705 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,682 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,554,642 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,790 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,648 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,354 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,510 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,124 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,480 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,256,818 |
| Flags of Asia Quiz | 0 | - | 4.99 | 619,699 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,799 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,343 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,312 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,938 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,627 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,823 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,813 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,949 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,398 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,111 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,842 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,492 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,167 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,494 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,841 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,728 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,207 |
| Official Cities in the UK | 0 | - | 4.89 | 286,036 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,579 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,683 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,412 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,765 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,985 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,178 |
| Former Capitals | 0 | - | 4.88 | 71,657 |
| Europe Capital to Country | 0 | - | 4.99 | 251,951 |
| Asia Capital to Country | 0 | - | 4.96 | 127,335 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,891 |
| European Capitals by Map | 0 | - | 4.99 | 141,949 |
| African Capitals by Map | 0 | - | 4.99 | 142,018 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,745 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,002 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,188 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,863 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,538 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,054 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,809 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,361 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,126 |
| European Coastal Capitals | 0 | - | 4.95 | 91,255 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,157 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,449 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,649 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,136 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,552 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,907 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,677 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,670 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,107 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,052 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,432 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,605 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,462 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,349 |
| Countries of the Middle East | 0 | - | 4.96 | 202,566 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,118 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,046 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,614 |
| Slavic Countries | 0 | - | 4.96 | 112,318 |
