| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,033 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,397 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,388 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 18,992 |
| United States Map Quiz | 0 | - | 4.98 | 4,134,628 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 232,661 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 21,874 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 66,683 |
| Random U.S. States on a Map | 0 | - | 4.96 | 619,072 |
| US States Quiz | 0 | - | 5.00 | 16,628,545 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 91,516 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,172 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,470 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,099 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,348 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 238,853 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 126,407 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 117,931 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 215,706 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,023 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,410 |
| Name the U.S. National Parks | 0 | - | 4.84 | 54,562 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 326,327 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,529 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 364,398 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 189,821 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 170,936 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,297 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,627 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,241 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,737 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 235,746 |
| Vietnam War Countries | 0 | - | 4.82 | 93,354 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,078 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,035 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 144,933 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,442 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,065 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,268 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 107,783 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,367 |
| Countries that Beat the United States | 0 | - | 4.93 | 164,919 |
| Europe Map Quiz | 0 | - | 5.00 | 4,717,310 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 100,638 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,654 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,661 |
| Pixelated United States Map | 0 | - | 4.90 | 93,010 |
| US States with an Empty Map | 0 | - | 5.00 | 616,513 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,236 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 499,404 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 109,852 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 111,922 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,091 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,087 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,322 |
| U.S. States By Population | 0 | - | 4.92 | 151,964 |
| U.S. States that Start with N | 0 | - | 4.95 | 169,501 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,574 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,164 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,655 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,374 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,542 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,590 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,492 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 176,884 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 123,942 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 68,895 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,456 |
| Presidential Actors | 0 | - | 4.36 | 19,019 |
| U.S. State Capitals Map Quiz | 0 | - | 4.92 | 141,838 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 87,656 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,131 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,052 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,419 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 116,947 |
| Countries Closest to Alaska | 0 | - | 4.93 | 122,727 |
| Countries Closest to Maine | 0 | - | 4.83 | 66,056 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,434,268 |
| Oceania Map Quiz | 0 | - | 4.98 | 632,020 |
| Africa Map Quiz | 0 | - | 5.00 | 2,098,566 |
| Asia Map Quiz | 0 | - | 4.99 | 902,816 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,453 |
| U.S. State Flags | 0 | - | 4.88 | 165,617 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,176 |
| Hawaiian Islands | 0 | - | 4.83 | 42,270 |
| Rivers of the United States | 0 | - | 4.93 | 65,062 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 423,848 |
| U.S. States that Border Canada | 0 | - | 4.91 | 181,010 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 64,948 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 205,951 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,488 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,236 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,496 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,619 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,399 |
| U.S. Presidents by Picture | 0 | - | 4.86 | 422,427 |
| Random U.S. Presidents by Picture | 0 | - | 4.39 | 65,644 |
| Cities in European History #1 | 0 | - | 4.61 | 132,210 |
| Cities in U.S. History #1 | 0 | - | 4.25 | 37,476 |
| Africa Capitals Quiz | 0 | - | 4.99 | 727,014 |
| Asia Capitals Quiz | 0 | - | 4.98 | 682,649 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 102,759 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,078 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,146 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,700 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,416 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 112,813 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,476 |
| The Only European Country ... | 0 | - | 4.91 | 212,668 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,137 |
| European Countries NOT in NATO | 0 | - | 4.87 | 58,838 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 91,767 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,176 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,135 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 154,792 |
| Random Asian Countries on a Map | 0 | - | 4.90 | 168,182 |
| Random African Countries on a Map | 0 | - | 4.99 | 292,304 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,059 |
| Countries of Africa | 0 | - | 5.00 | 2,495,890 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 82,926 |
| Vatican City Country Quiz | 0 | - | 4.53 | 43,826 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,372,403 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,463 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 96,935 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,549 |
| Australia Map Quiz | 0 | - | 4.94 | 341,702 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 361,462 |
| African East Coast | 0 | - | 4.96 | 94,627 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,525 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,510,576 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 74,865 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,608 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 217,308 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 131,683 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 378,723 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,217,985 |
| Flags of Asia Quiz | 0 | - | 4.99 | 601,659 |
| Countries of Europe by Population | 0 | - | 4.98 | 176,886 |
| Most Populous Countries by Year | 0 | - | 4.83 | 108,724 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,203 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,373 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,263 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,683 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,599 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,427 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,042 |
| Biggest European Cities by Century | 0 | - | 4.98 | 128,516 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 133,899 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 75,024 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,329 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,349 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 72,583 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 95,880 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,237 |
| Official Cities in the UK | 0 | - | 4.89 | 279,087 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,547 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,383 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 108,876 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,288 |
| Most-Visited Cities in Europe | 0 | - | 4.81 | 73,081 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,450 |
| Former Capitals | 0 | - | 4.88 | 70,984 |
| Europe Capital to Country | 0 | - | 4.99 | 246,574 |
| Asia Capital to Country | 0 | - | 4.96 | 125,367 |
| EU Capitals with No Hints | 0 | - | 4.96 | 143,786 |
| European Capitals by Map | 0 | - | 4.99 | 135,067 |
| African Capitals by Map | 0 | - | 4.99 | 131,656 |
| South America Capitals Quiz | 0 | - | 5.00 | 475,567 |
| North America Capitals Quiz | 0 | - | 4.99 | 215,683 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,294 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,665 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,136 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 117,476 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 90,736 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 86,886 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,216 |
| European Coastal Capitals | 0 | - | 4.95 | 89,354 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 51,995 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 265,229 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 220,819 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,231 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,497 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,160 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,503 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,417 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,314,759 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 173,466 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 123,860 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 215,359 |
| Biggest British Empire Countries | 0 | - | 4.70 | 87,043 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,747 |
| Countries of the Middle East | 0 | - | 4.96 | 198,184 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 87,814 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 133,980 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,042 |
| Slavic Countries | 0 | - | 4.96 | 110,534 |
| African Island Countries | 0 | - | 4.96 | 100,406 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,097 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,567 |
| Monarchies of Europe | 0 | - | 4.89 | 96,910 |
