| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,413 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,684 |
| Vietnam War Countries | 0 | - | 4.82 | 94,103 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,000 |
| Random U.S. States on a Map | 0 | - | 4.96 | 625,325 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,492 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,156 |
| U.S. Senators by State | 0 | - | 4.45 | 39,913 |
| Presidential Actors | 0 | - | 4.36 | 19,156 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,122 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,841 |
| US States Quiz | 0 | - | 5.00 | 16,838,120 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,653 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,451 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,354 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,376 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,652 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,418 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,545 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,578 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,358 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,777 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,334 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,576 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,161 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,381 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,551 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,629 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,821 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,187 |
| Pixelated United States Map | 0 | - | 4.87 | 94,104 |
| US States with an Empty Map | 0 | - | 5.00 | 623,466 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,664 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,195 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,234 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,734 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,001 |
| U.S. States By Population | 0 | - | 4.92 | 153,026 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,222 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,338 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,401 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,121 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,487 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,804 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,587 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,067 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,432 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,128 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,004 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,364 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,929 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,797 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,685 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,397 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,039 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,807 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,081 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,216 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,521 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,497 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,177 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,189 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,117 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,135 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,991 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,585 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,673 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,189 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,613 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,264 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,118 |
| Rivers of the United States | 0 | - | 4.93 | 66,083 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,350 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 505,647 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,767 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,425 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,491 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,937 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,506 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,439 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,831 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,830 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,836 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,074 |
| Asia Capitals Quiz | 0 | - | 4.98 | 691,269 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,857 |
| New York City A-Z | 0 | - | 4.18 | 32,281 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,546 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,771 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,285 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,329 |
| Countries of Africa | 0 | - | 5.00 | 2,531,078 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,005 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,296 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,497 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,951 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,835 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,161 |
| Asia Map Quiz | 0 | - | 4.99 | 914,881 |
| Australia Map Quiz | 0 | - | 4.95 | 343,893 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,037 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,025 |
| U.S. State Flags | 0 | - | 4.89 | 169,823 |
| Hawaiian Islands | 0 | - | 4.83 | 42,658 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,630 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,424 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,280 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,775 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,405 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,892 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,240,589 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,681 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,246 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,419 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,801 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,275 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,123 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,099 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,532 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,171 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,454 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,096 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,789 |
| Cities in European History #1 | 0 | - | 4.63 | 133,826 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,562 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,451 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,859 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,396 |
| Former Capitals | 0 | - | 4.88 | 71,388 |
| Europe Capital to Country | 0 | - | 4.99 | 249,638 |
| Asia Capital to Country | 0 | - | 4.96 | 126,497 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,625 |
| European Capitals by Map | 0 | - | 4.99 | 138,651 |
| African Capitals by Map | 0 | - | 4.99 | 133,406 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,104 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,911 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,263 |
| European Coastal Capitals | 0 | - | 4.95 | 90,413 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,510 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,299 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,618 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,752 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,854 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,612 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,183 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,624 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,290 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,650 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,891 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,240 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,919 |
| Countries of the Middle East | 0 | - | 4.96 | 200,815 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,046 |
| The Only European Country ... | 0 | - | 4.91 | 216,065 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,831 |
| Slavic Countries | 0 | - | 4.96 | 111,514 |
| African Island Countries | 0 | - | 4.96 | 101,462 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,820 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,589 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,808 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,606 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,100 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,284 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,384 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,874 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,962 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,934 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,688 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,310 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,233 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,713 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,464 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,564 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,526 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,109 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,011 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,425 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,045 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,995 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,842 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,112 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,330 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,654 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,408 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,014 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,505 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,780 |
| North America Map Quiz | 0 | - | 4.98 | 247,832 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,699 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,660 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,892 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,108 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,541 |
| Flags of North and South America | 0 | - | 4.99 | 372,114 |
| Australian States and Territories | 0 | - | 4.96 | 141,719 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,532 |
| Territories of the United States | 0 | - | 4.79 | 52,340 |
| Counties of England | 0 | - | 4.97 | 795,117 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,807 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,776 |
