| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,509 |
| U.S. Presidents by State | 0 | - | 4.34 | 68,482 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,027 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,268 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 21,919 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,472 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,315 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,148 |
| US States Quiz | 0 | - | 5.00 | 16,695,171 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,800 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,849 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,937 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,214 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,309 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,715 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,628 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,756 |
| Vietnam War Countries | 0 | - | 4.83 | 93,584 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,815 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,253 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,650 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,433 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,825 |
| Most-Visited Countries by Popes | 0 | - | 4.55 | 83,154 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,219 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,811 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,855 |
| Pixelated United States Map | 0 | - | 4.89 | 93,445 |
| US States with an Empty Map | 0 | - | 5.00 | 618,620 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,695 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,330 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,376 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,620 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,871 |
| U.S. States By Population | 0 | - | 4.92 | 152,330 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,368 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,839 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,881 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,751 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,862 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,853 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,065 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,462 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,058 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,650 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,365 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,318 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,885 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,053 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,514 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,320 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,875 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,199 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,515 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,378 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,447 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,702 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,286 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,422 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,528 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,284 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,072 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,544 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,795 |
| Rivers of the United States | 0 | - | 4.93 | 65,492 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,923 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,671 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,675 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,545 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,621 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,892 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,841 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,630 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,595 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,022 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,535 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,000 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,646 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,171 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,294 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,353 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,436 |
| Countries of Africa | 0 | - | 5.00 | 2,506,924 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,390 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,645 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,477 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,122 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,881 |
| Asia Map Quiz | 0 | - | 4.99 | 906,767 |
| Australia Map Quiz | 0 | - | 4.94 | 342,423 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,256 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,636 |
| U.S. State Flags | 0 | - | 4.89 | 166,983 |
| Hawaiian Islands | 0 | - | 4.83 | 42,424 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,097 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,353 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,080 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,012 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,470 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,447 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,504 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,034 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,296 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,965 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,174 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,367 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,656 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,260 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,236 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,578 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,542 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,780 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,183 |
| Cities in European History #1 | 0 | - | 4.63 | 133,082 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,456 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,324 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,771 |
| Cities in U.S. History #1 | 0 | - | 4.30 | 43,010 |
| Former Capitals | 0 | - | 4.88 | 71,130 |
| Europe Capital to Country | 0 | - | 4.99 | 247,534 |
| Asia Capital to Country | 0 | - | 4.96 | 125,719 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,412 |
| European Capitals by Map | 0 | - | 4.99 | 136,190 |
| African Capitals by Map | 0 | - | 4.99 | 132,119 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,104 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,154 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,583 |
| European Coastal Capitals | 0 | - | 4.95 | 89,717 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,173 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,705 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,710 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,409 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,153 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,919 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,848 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,491 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,518 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,789 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,493 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,258 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,611 |
| Countries of the Middle East | 0 | - | 4.96 | 198,854 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,223 |
| The Only European Country ... | 0 | - | 4.91 | 213,745 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,066 |
| Slavic Countries | 0 | - | 4.96 | 110,829 |
| African Island Countries | 0 | - | 4.96 | 100,760 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,474 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,187 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,487 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,685 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,679 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,315 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,338 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,677 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,458 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,054 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,584 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,680 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,735 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,139 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,143 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,261 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,542 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,235 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,377 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,211 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,486 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,799 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,978 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,121 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,449 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,774 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,168 |
| North America Map Quiz | 0 | - | 4.98 | 244,335 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,433 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,899 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,426 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,329 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,224 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,065 |
| Flags of North and South America | 0 | - | 4.99 | 366,875 |
| Australian States and Territories | 0 | - | 4.95 | 140,675 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,751 |
| Territories of the United States | 0 | - | 4.79 | 52,130 |
| Counties of England | 0 | - | 4.97 | 788,972 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,802 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,595 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,008 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,365 |
| African East Coast | 0 | - | 4.96 | 95,014 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,654 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,386 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,768 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,598 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,735 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,517,899 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,667 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,102 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,856 |
