| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,127 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,865 |
| Random U.S. States on a Map | 0 | - | 4.96 | 628,832 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,968 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,190 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,748 |
| United States Map Quiz | 0 | - | 4.98 | 4,166,548 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,491 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,069 |
| Presidential Actors | 0 | - | 4.36 | 19,219 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,978 |
| US States Quiz | 0 | - | 5.00 | 16,950,194 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,784 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,321 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,013 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,116 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,759 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,728 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,104 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,502 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,250 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,084 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,501 |
| Vietnam War Countries | 0 | - | 4.82 | 94,473 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,525 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,915 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,112 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,393 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,755 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,531 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,187 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,185 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,985 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,284 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,144 |
| Pixelated United States Map | 0 | - | 4.88 | 94,613 |
| US States with an Empty Map | 0 | - | 5.00 | 627,080 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,702 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,926 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,927 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,564 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,918 |
| U.S. States By Population | 0 | - | 4.92 | 153,902 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,920 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,714 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,903 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,421 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,922 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,448 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,047 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,532 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,735 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,527 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,276 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,139 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,661 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,121 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,452 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,159 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,237 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 237,947 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,338 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,902 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,081 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,691 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,834 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,408 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,204 |
| Europe Map Quiz | 0 | - | 5.00 | 4,778,050 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,170 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,881 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,306 |
| Rivers of the United States | 0 | - | 4.93 | 66,472 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,811 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,779 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,670 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,024 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,854 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,801 |
| U.S. Senators by State | 0 | - | 4.44 | 40,040 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,580 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,213 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,048 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,570 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,102 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,559 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,532 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,518 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,764 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,138 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,985 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,620 |
| Random African Countries on a Map | 0 | - | 4.99 | 297,245 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,574 |
| Countries of Africa | 0 | - | 5.00 | 2,550,895 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,493 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,561 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,871 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,746 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,257 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,013 |
| Asia Map Quiz | 0 | - | 4.99 | 922,175 |
| Australia Map Quiz | 0 | - | 4.95 | 345,613 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,557 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,320 |
| U.S. State Flags | 0 | - | 4.89 | 171,955 |
| Hawaiian Islands | 0 | - | 4.83 | 42,836 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,945 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,034 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,449 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,427 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,850 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 135,088 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,955 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,252,341 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,588 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,171 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,099 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,286 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,940 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,676 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,667 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,378 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,051 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,404 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,717 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,562 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,886 |
| Cities in European History #1 | 0 | - | 4.63 | 134,393 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,653 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,179 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,713 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,489 |
| Former Capitals | 0 | - | 4.88 | 71,586 |
| Europe Capital to Country | 0 | - | 4.99 | 251,423 |
| Asia Capital to Country | 0 | - | 4.96 | 127,121 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,554 |
| European Capitals by Map | 0 | - | 4.99 | 141,184 |
| African Capitals by Map | 0 | - | 4.99 | 140,973 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,488 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,574 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,928 |
| European Coastal Capitals | 0 | - | 4.95 | 91,032 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,036 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,531 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,105 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,031 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,398 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,115 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,453 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,905 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,901 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,528 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,551 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,030 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,170 |
| Countries of the Middle East | 0 | - | 4.96 | 202,128 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,844 |
| The Only European Country ... | 0 | - | 4.91 | 218,087 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,264 |
| Slavic Countries | 0 | - | 4.96 | 112,109 |
| African Island Countries | 0 | - | 4.96 | 102,154 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,040 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,809 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,035 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,450 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,100 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,479 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,024 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,218 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,963 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,211 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,280 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,829 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,584 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,770 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,238 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,991 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,646 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,904 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,900 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,745 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,376 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,331 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,555 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,128 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,580 |
| North America Map Quiz | 0 | - | 4.98 | 250,306 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,613 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,375 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,357 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,565 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,080 |
| Flags of North and South America | 0 | - | 4.99 | 375,412 |
| Australian States and Territories | 0 | - | 4.96 | 142,506 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,772 |
| Territories of the United States | 0 | - | 4.80 | 52,522 |
| Counties of England | 0 | - | 4.97 | 800,655 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 174,512 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,325 |
