| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,249 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,892 |
| Vietnam War Countries | 0 | - | 4.82 | 94,519 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,047 |
| Random U.S. States on a Map | 0 | - | 4.96 | 629,332 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,245 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,548 |
| U.S. Senators by State | 0 | - | 4.44 | 40,075 |
| Presidential Actors | 0 | - | 4.36 | 19,232 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,203 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,120 |
| US States Quiz | 0 | - | 5.00 | 16,966,365 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,806 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,409 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,822 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,784 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,318 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,411 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,678 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,358 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,190 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,633 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,894 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,974 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,593 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,323 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,277 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,046 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,356 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,690 |
| Pixelated United States Map | 0 | - | 4.88 | 94,673 |
| US States with an Empty Map | 0 | - | 5.00 | 627,642 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,840 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,070 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,076 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,783 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,090 |
| U.S. States By Population | 0 | - | 4.92 | 153,999 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,034 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,779 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,963 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,458 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,978 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,526 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,096 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,580 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,771 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,569 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,078 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,432 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,477 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,792 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,259 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,543 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,508 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,122 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,256 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,069 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,473 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,256 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,007 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,292 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,755 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,946 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,482 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,370 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,565 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,071 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,315 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,975 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,342 |
| Rivers of the United States | 0 | - | 4.93 | 66,567 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,944 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,237 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,824 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,138 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,241 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,940 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,712 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,328 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,100 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,684 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,153 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,381 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,522 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,636 |
| US States and State Capitals | 0 | - | 4.99 | 164,729 |
| New York City A-Z | 0 | - | 4.18 | 32,364 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,791 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,207 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,103 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,040 |
| Countries of Africa | 0 | - | 5.00 | 2,553,782 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,567 |
| Vatican City Country Quiz | 0 | - | 4.53 | 44,591 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,377 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,261 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,137 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,342 |
| Asia Map Quiz | 0 | - | 4.99 | 923,317 |
| Australia Map Quiz | 0 | - | 4.95 | 345,838 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,792 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,361 |
| U.S. State Flags | 0 | - | 4.89 | 172,269 |
| Hawaiian Islands | 0 | - | 4.83 | 42,878 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,303 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,270 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,471 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,539 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,084 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,321 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,303 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,487 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,455 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,202 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,335 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,023 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,752 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,432 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,107 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,443 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,781 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,637 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,903 |
| Cities in European History #1 | 0 | - | 4.63 | 134,474 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,670 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,287 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,845 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,500 |
| Former Capitals | 0 | - | 4.88 | 71,622 |
| Europe Capital to Country | 0 | - | 4.99 | 251,690 |
| Asia Capital to Country | 0 | - | 4.96 | 127,242 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,716 |
| European Capitals by Map | 0 | - | 4.99 | 141,566 |
| African Capitals by Map | 0 | - | 4.99 | 141,656 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,695 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,689 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,025 |
| European Coastal Capitals | 0 | - | 4.95 | 91,135 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,096 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,972 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,402 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,080 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,511 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,350 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,490 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,981 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,964 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,652 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,789 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,314 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,205 |
| Countries of the Middle East | 0 | - | 4.96 | 202,323 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,970 |
| The Only European Country ... | 0 | - | 4.91 | 218,453 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,516 |
| Slavic Countries | 0 | - | 4.96 | 112,209 |
| African Island Countries | 0 | - | 4.96 | 102,276 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,206 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,848 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,101 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,541 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,128 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,225 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,190 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,464 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,852 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,227 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,606 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,144 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,371 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,115 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,318 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,391 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,877 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,660 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,862 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,328 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,104 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,740 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,018 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,990 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,323 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,320 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,430 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,627 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,306 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,655 |
| North America Map Quiz | 0 | - | 4.98 | 250,933 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,714 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,433 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,413 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,644 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,016 |
| Flags of North and South America | 0 | - | 4.99 | 375,989 |
| Australian States and Territories | 0 | - | 4.96 | 142,656 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,317 |
| Territories of the United States | 0 | - | 4.80 | 52,566 |
| Counties of England | 0 | - | 4.97 | 801,473 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,080 |
