| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,503 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,691,846 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,275 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,105 |
| US States and State Capitals | 0 | - | 4.99 | 163,196 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,476 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,720 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,973 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,330 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,265 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,318 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,426 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,288 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,816 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,399 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,208 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,244 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,175 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,417 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,141 |
| Which City in Canada? | 0 | - | 4.83 | 57,122 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,668 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,015 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,601 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,391 |
| Biggest Cities in California | 0 | - | 4.35 | 139,998 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,176 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,728 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,697 |
| World Capitals Quiz | 0 | - | 5.00 | 5,080,868 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,182 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,468 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,641 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,421 |
| Biggest Cities in New Jersey | 0 | - | 4.13 | 28,822 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,194 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,778 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,914 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,969 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,006 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,633 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,442 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,904 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,063 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,506 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,324 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,265 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,403 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,130 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,036 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,878 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,438 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,913 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,226 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,841 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,410 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,177 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,249 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,028 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,623 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,912 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,443 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,012 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,953 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,201 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,426 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,924 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,159 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,675 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,631 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,546 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,044 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,706 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,435 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,891 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,600 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,175 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,083 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,227 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,763 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,827 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,887 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,235 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,267 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,587 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,191 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,615 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,212 |
| North American Sports Cities | 0 | - | 4.83 | 172,562 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,373 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,373 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,497 |
| Name a City - European Countries | 0 | - | 4.90 | 65,542 |
| Name a Valid World City | 0 | - | 4.83 | 71,392 |
| Cities by Former Name | 0 | - | 4.83 | 91,661 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,073 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,203 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,453 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,459 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,509 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,726 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,623 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,417 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,226 |
| Countries by Capital City | 0 | - | 5.00 | 68,531 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,305 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,767 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,342 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,335 |
| Moved Capital Cities | 0 | - | 4.96 | 74,298 |
| World Capitals by Map | 0 | - | 5.00 | 287,214 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,419 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,582 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,618 |
| Random Country to Capital | 0 | - | 4.98 | 922,105 |
| Capitals Starting With H | 0 | - | 4.91 | 92,675 |
| Capitals Starting With K | 0 | - | 4.88 | 83,721 |
| Capitals Starting With L | 0 | - | 4.81 | 88,206 |
| Capitals Starting With M | 0 | - | 4.93 | 107,995 |
| Capitals Starting With P | 0 | - | 4.88 | 78,309 |
| Capitals Starting With R | 0 | - | 4.87 | 81,947 |
| Capitals Starting With S | 0 | - | 4.90 | 85,915 |
| Capitals Starting With T | 0 | - | 4.85 | 76,268 |
| Capitals Starting With W | 0 | - | 4.87 | 91,373 |
| Capitals Starting With A | 0 | - | 4.97 | 128,220 |
| Capitals Starting With B | 0 | - | 4.89 | 118,659 |
| Capitals Starting With D | 0 | - | 4.93 | 96,581 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,291 |
| U.S. State Flags | 0 | - | 4.88 | 171,089 |
| Hawaiian Islands | 0 | - | 4.83 | 42,758 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,361 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,110 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,964 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,859 |
| Largest City by Island | 0 | - | 4.87 | 72,008 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,115 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,124 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,687 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,374 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,516 |
| Megacities on a World Map | 0 | - | 4.98 | 255,118 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,053 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,468 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,108 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,458 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,549 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,342 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,683 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,025 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,928 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,607 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,933 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,599 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,877 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,112 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,377 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,312 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 131,027 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,903 |
| Former Capitals | 0 | - | 4.88 | 71,503 |
| Europe Capital to Country | 0 | - | 4.99 | 250,702 |
| Asia Capital to Country | 0 | - | 4.96 | 126,785 |
| Capital Cities Chain | 0 | - | 4.83 | 82,885 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,103 |
| European Capitals by Map | 0 | - | 4.99 | 139,756 |
| African Capitals by Map | 0 | - | 4.99 | 134,072 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,188 |
| Coldest World Capitals | 0 | - | 4.95 | 133,627 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,580 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,233 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,566 |
| European Coastal Capitals | 0 | - | 4.95 | 90,745 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,646 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,569 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,385 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,894 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,704 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,047 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,146 |
| New York Counties | 0 | - | 4.65 | 50,760 |
| Texas Counties | 0 | - | 4.56 | 76,832 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,017 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,514 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,448 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,789 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,739 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,499 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,598 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,976 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,603 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,017 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,420 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,621 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,653 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,988 |
| Official Cities in the UK | 0 | - | 4.89 | 284,294 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,311 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,919 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 148,903 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,102 |
