| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,374 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,461 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,443 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,418 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,020 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,681 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,730 |
| US States Quiz | 0 | - | 5.00 | 16,676,321 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,823 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,025 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,035 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,556 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,496 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,652 |
| Vietnam War Countries | 0 | - | 4.83 | 93,526 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 239,902 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,194 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,601 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,260 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,699 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,172 |
| Name the U.S. National Parks | 0 | - | 4.85 | 57,271 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,480 |
| Pixelated United States Map | 0 | - | 4.89 | 93,271 |
| US States with an Empty Map | 0 | - | 5.00 | 618,033 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,562 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,188 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,247 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,466 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,727 |
| U.S. States By Population | 0 | - | 4.92 | 152,239 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,230 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,761 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,826 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,696 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,776 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,758 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,021 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,385 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,013 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,600 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 21,915 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,209 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 171,960 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,673 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,925 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,424 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,205 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,817 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,051 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,389 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,254 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,347 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,592 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,176 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,356 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,364 |
| Europe Map Quiz | 0 | - | 5.00 | 4,726,851 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,012 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 100,950 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,753 |
| Rivers of the United States | 0 | - | 4.93 | 65,422 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,853 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,112 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,520 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,438 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,414 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,766 |
| U.S. Senators by State | 0 | - | 4.44 | 39,717 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,771 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,541 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,563 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,923 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,502 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,084 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,256 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,289 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,347 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,300 |
| Vatican City Country Quiz | 0 | - | 4.53 | 43,951 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,436,899 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,345 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,525 |
| Asia Map Quiz | 0 | - | 4.99 | 905,591 |
| Random U.S. States on a Map | 0 | - | 4.96 | 620,695 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,587 |
| U.S. State Flags | 0 | - | 4.89 | 166,638 |
| Hawaiian Islands | 0 | - | 4.83 | 42,393 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,783 |
| U.S. States that Border Canada | 0 | - | 4.91 | 181,798 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,061 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,907 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 217,955 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,245 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,223,813 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,371 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,652 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,025 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,183 |
| Biggest European Cities by Century | 0 | - | 4.98 | 128,674 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,130 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,493 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,475 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,704 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,079 |
| Cities in European History #1 | 0 | - | 4.63 | 132,942 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,441 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,232 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,629 |
| Cities in U.S. History #1 | 0 | - | 4.25 | 37,504 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,275 |
| Former Capitals | 0 | - | 4.88 | 71,072 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,715 |
| Europe Capital to Country | 0 | - | 4.99 | 247,253 |
| Asia Capital to Country | 0 | - | 4.96 | 125,601 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,260 |
| European Capitals by Map | 0 | - | 4.99 | 135,888 |
| African Capitals by Map | 0 | - | 4.99 | 132,030 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,725 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,945 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,058 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,517 |
| European Coastal Capitals | 0 | - | 4.95 | 89,627 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,138 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,319 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,504 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,368 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,087 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,696 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,816 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,484 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,422 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,694 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,313 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,004 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,576 |
| Countries of the Middle East | 0 | - | 4.96 | 198,679 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,122 |
| The Only European Country ... | 0 | - | 4.91 | 213,444 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,805 |
| Slavic Countries | 0 | - | 4.96 | 110,762 |
| African Island Countries | 0 | - | 4.96 | 100,640 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,298 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,672 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,150 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,452 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,549 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,548 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,178 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 126,624 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,148 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 215,994 |
| Countries of Africa | 0 | - | 5.00 | 2,503,938 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,241 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,569 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,342 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,889 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,453 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,568 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,662 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,098 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,063 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,177 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,450 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,138 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,311 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,122 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,411 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,244 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,374,405 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,458 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,167 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,931 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,389 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,715 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,055 |
| North America Map Quiz | 0 | - | 4.98 | 243,945 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,274 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,766 |
| Australia Map Quiz | 0 | - | 4.94 | 342,200 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,036 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,155 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,253 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,848 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,101 |
| Flags of North and South America | 0 | - | 4.99 | 365,293 |
| Australian States and Territories | 0 | - | 4.95 | 140,538 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,189 |
| Territories of the United States | 0 | - | 4.79 | 52,096 |
| Counties of England | 0 | - | 4.97 | 788,206 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,480 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,560 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,986 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,340 |
| African East Coast | 0 | - | 4.96 | 94,900 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 70,567 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,220 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,503 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,428 |
