| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,571 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,486 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,485 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,114 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,035 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,858 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,883 |
| US States Quiz | 0 | - | 5.00 | 16,704,287 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,964 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,304 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,405 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,772 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,671 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,915 |
| Vietnam War Countries | 0 | - | 4.83 | 93,624 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,984 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,288 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,697 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,497 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,877 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,249 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,017 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,074 |
| Pixelated United States Map | 0 | - | 4.89 | 93,503 |
| US States with an Empty Map | 0 | - | 5.00 | 618,934 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,750 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,380 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,427 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,686 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,931 |
| U.S. States By Population | 0 | - | 4.92 | 152,390 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,422 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,878 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,914 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,767 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,895 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,891 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,089 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,504 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,076 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,667 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 21,925 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,420 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,498 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,978 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,100 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,551 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,383 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,893 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,339 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,666 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,436 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,515 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,741 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,329 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,453 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,595 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,966 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,215 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,113 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,810 |
| Rivers of the United States | 0 | - | 4.93 | 65,525 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,949 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,963 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,739 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,599 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,743 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,968 |
| U.S. Senators by State | 0 | - | 4.45 | 39,760 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,880 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,671 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,608 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,082 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,556 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,204 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,311 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,390 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,493 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,434 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,010 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,647 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,424 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,601 |
| Asia Map Quiz | 0 | - | 4.99 | 907,191 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,598 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,664 |
| U.S. State Flags | 0 | - | 4.89 | 167,162 |
| Hawaiian Islands | 0 | - | 4.83 | 42,432 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,258 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,503 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,090 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,054 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,584 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,533 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,082 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,716 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,134 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,261 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,397 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,744 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,315 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,295 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,625 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,582 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,825 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,232 |
| Cities in European History #1 | 0 | - | 4.63 | 133,156 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,461 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,378 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,852 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 44,356 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,410 |
| Former Capitals | 0 | - | 4.88 | 71,146 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,032 |
| Europe Capital to Country | 0 | - | 4.99 | 247,960 |
| Asia Capital to Country | 0 | - | 4.96 | 125,776 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,494 |
| European Capitals by Map | 0 | - | 4.99 | 136,324 |
| African Capitals by Map | 0 | - | 4.99 | 132,194 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,363 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,154 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,213 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,643 |
| European Coastal Capitals | 0 | - | 4.95 | 89,789 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,195 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,863 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,876 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,431 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,235 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,040 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,865 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,999 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,567 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,832 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,599 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,388 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,634 |
| Countries of the Middle East | 0 | - | 4.96 | 198,957 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,283 |
| The Only European Country ... | 0 | - | 4.91 | 213,903 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,179 |
| Slavic Countries | 0 | - | 4.96 | 110,874 |
| African Island Countries | 0 | - | 4.96 | 100,803 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,581 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,740 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,218 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,503 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,749 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,771 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,377 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 126,759 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,291 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,173 |
| Countries of Africa | 0 | - | 5.00 | 2,508,418 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,917 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,737 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,505 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,144 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,644 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,727 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,790 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,162 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,180 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,306 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,593 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,294 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,436 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,268 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,512 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,052 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,002 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,869 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,352 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,256 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,486 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,811 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,215 |
| North America Map Quiz | 0 | - | 4.98 | 244,517 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,495 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,947 |
| Australia Map Quiz | 0 | - | 4.94 | 342,522 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,350 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,440 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,361 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,222 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,540 |
| Flags of North and South America | 0 | - | 4.99 | 367,398 |
| Australian States and Territories | 0 | - | 4.96 | 140,924 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,000 |
| Territories of the United States | 0 | - | 4.79 | 52,151 |
| Counties of England | 0 | - | 4.97 | 789,374 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,975 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,612 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,023 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,387 |
| African East Coast | 0 | - | 4.96 | 95,068 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,703 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,489 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,879 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,686 |
