| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,420 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,686 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,122 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,033 |
| Random U.S. States on a Map | 0 | - | 4.96 | 625,400 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,195 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,005 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,698 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,164 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,656 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,850 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 302,066 |
| Presidential Actors | 0 | - | 4.36 | 19,157 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,362 |
| US States Quiz | 0 | - | 5.00 | 16,839,680 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,379 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,673 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,190 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,559 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,593 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,458 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,364 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,785 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,361 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,634 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,823 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,256 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,377 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,966 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,806 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,697 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,046 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,086 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,221 |
| Vietnam War Countries | 0 | - | 4.82 | 94,107 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,581 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,529 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,185 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,164 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,201 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,121 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,398 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,554 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,608 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,955 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,622 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,121 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,353 |
| Pixelated United States Map | 0 | - | 4.87 | 94,107 |
| US States with an Empty Map | 0 | - | 5.00 | 623,515 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,673 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 505,689 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,206 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,239 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,782 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,749 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,015 |
| U.S. States By Population | 0 | - | 4.92 | 153,044 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,236 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,343 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,431 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,406 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,949 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,121 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,494 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,813 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,604 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,078 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,436 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,130 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,818 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,865 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,773 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,291 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,504 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,016 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,147 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,998 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,028 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,923 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,258 |
| Asia Map Quiz | 0 | - | 4.99 | 914,988 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,028 |
| U.S. State Flags | 0 | - | 4.89 | 169,868 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,272 |
| Hawaiian Islands | 0 | - | 4.83 | 42,661 |
| Rivers of the United States | 0 | - | 4.93 | 66,090 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,637 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,450 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,281 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,506 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,516 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,445 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,838 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,844 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,841 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,240,766 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,783 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,790 |
| Cities in European History #1 | 0 | - | 4.63 | 133,832 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,398 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,196 |
| Asia Capitals Quiz | 0 | - | 4.98 | 691,365 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,892 |
| US States and State Capitals | 0 | - | 4.99 | 161,459 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,629 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,547 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,185 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,695 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,659 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,914 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,924 |
| The Only European Country ... | 0 | - | 4.91 | 216,105 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,844 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,838 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,595 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,618 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,112 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,295 |
| Countries of Africa | 0 | - | 5.00 | 2,531,402 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,027 |
| Most-Visited Countries by Popes | 0 | - | 4.56 | 83,612 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,299 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,352 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,582 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,722 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,510 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,712 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,673 |
| Australia Map Quiz | 0 | - | 4.95 | 343,920 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,073 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,629 |
| Flags of North and South America | 0 | - | 4.99 | 372,165 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,588 |
| Counties of England | 0 | - | 4.97 | 795,154 |
| African East Coast | 0 | - | 4.96 | 95,869 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,784 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,534,820 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,446 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,244 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,425 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,908 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,668 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,155 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,266 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,427 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,516 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,566 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,083 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,669 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,364 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,928 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,808 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,280 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,130 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,103 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,558 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,180 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,456 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,103 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,611 |
| Official Cities in the UK | 0 | - | 4.89 | 283,176 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,278 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,563 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,461 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,429 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,874 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,873 |
| Former Capitals | 0 | - | 4.88 | 71,396 |
| Europe Capital to Country | 0 | - | 4.99 | 249,655 |
| Asia Capital to Country | 0 | - | 4.96 | 126,508 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,642 |
| European Capitals by Map | 0 | - | 4.99 | 138,668 |
| African Capitals by Map | 0 | - | 4.99 | 133,415 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,580 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,235 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,314 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,119 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 93,922 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,042 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,926 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,730 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,268 |
| European Coastal Capitals | 0 | - | 4.95 | 90,418 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,518 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,335 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,632 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,757 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,096 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,142 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,197 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,563 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,300 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,764 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,261 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,807 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,118 |
| Countries of the Middle East | 0 | - | 4.96 | 200,829 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,059 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,099 |
