| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,553 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,485 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,033 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,842 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 21,922 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,480 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,437 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,197 |
| US States Quiz | 0 | - | 5.00 | 16,700,940 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,837 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,871 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,960 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,269 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,379 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,753 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,662 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,867 |
| Vietnam War Countries | 0 | - | 4.83 | 93,609 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,917 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,277 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,679 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,466 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,854 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,181 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,239 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,964 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,002 |
| Pixelated United States Map | 0 | - | 4.89 | 93,480 |
| US States with an Empty Map | 0 | - | 5.00 | 618,837 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,734 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,361 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,418 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,669 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,907 |
| U.S. States By Population | 0 | - | 4.92 | 152,369 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,405 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,867 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,904 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,765 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,881 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,879 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,081 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,488 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,069 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,659 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,402 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,441 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,953 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,084 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,541 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,360 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,886 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,291 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,626 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,419 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,491 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,732 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,317 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,447 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,581 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,347 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,095 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,581 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,806 |
| Rivers of the United States | 0 | - | 4.93 | 65,518 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,933 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,859 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,716 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,584 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,706 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,942 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,868 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,659 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,600 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,066 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,552 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,246 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,903 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,191 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,308 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,378 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,469 |
| Countries of Africa | 0 | - | 5.00 | 2,507,867 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,413 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,921 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,472 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,311 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,308 |
| Asia Map Quiz | 0 | - | 4.99 | 907,028 |
| Australia Map Quiz | 0 | - | 4.94 | 342,482 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,306 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,653 |
| U.S. State Flags | 0 | - | 4.89 | 167,096 |
| Hawaiian Islands | 0 | - | 4.83 | 42,427 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,202 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,455 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,089 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,045 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,551 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,508 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,571 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,646 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,565 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,072 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,227 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,393 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,483 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,295 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,272 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,608 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,570 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,811 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,215 |
| Cities in European History #1 | 0 | - | 4.63 | 133,125 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,460 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,356 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,818 |
| Cities in U.S. History #1 | 0 | - | 4.30 | 44,108 |
| Former Capitals | 0 | - | 4.88 | 71,144 |
| Europe Capital to Country | 0 | - | 4.99 | 247,874 |
| Asia Capital to Country | 0 | - | 4.96 | 125,759 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,455 |
| European Capitals by Map | 0 | - | 4.99 | 136,275 |
| African Capitals by Map | 0 | - | 4.99 | 132,181 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,124 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,188 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,612 |
| European Coastal Capitals | 0 | - | 4.95 | 89,756 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,187 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,800 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,802 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,423 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,190 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,988 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,861 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,771 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,550 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,814 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,560 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,327 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,622 |
| Countries of the Middle East | 0 | - | 4.96 | 198,921 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,264 |
| The Only European Country ... | 0 | - | 4.91 | 213,836 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,146 |
| Slavic Countries | 0 | - | 4.96 | 110,857 |
| African Island Countries | 0 | - | 4.96 | 100,790 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,534 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,209 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,498 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,732 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,740 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,354 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,652 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,707 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,491 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,110 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,628 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,716 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,761 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,155 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,164 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,290 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,576 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,275 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,414 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,244 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,506 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,961 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,224 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,227 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,471 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,798 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,206 |
| North America Map Quiz | 0 | - | 4.98 | 244,431 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,471 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,926 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,434 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,343 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,490 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,389 |
| Flags of North and South America | 0 | - | 4.99 | 367,225 |
| Australian States and Territories | 0 | - | 4.95 | 140,861 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,913 |
| Territories of the United States | 0 | - | 4.79 | 52,145 |
| Counties of England | 0 | - | 4.97 | 789,195 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,887 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,608 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,020 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,379 |
| African East Coast | 0 | - | 4.96 | 95,048 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,685 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,453 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,826 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,658 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,768 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,518,616 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,689 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,114 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,869 |
