| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,505 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,691,884 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,275 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,106 |
| US States and State Capitals | 0 | - | 4.99 | 163,204 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,478 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,733 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,975 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,338 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,267 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,319 |
| 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 | 48,817 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,399 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,209 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,248 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,177 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,431 |
| 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 | 224,672 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,017 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,606 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,392 |
| Biggest Cities in California | 0 | - | 4.35 | 139,999 |
| 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 | 31,698 |
| World Capitals Quiz | 0 | - | 5.00 | 5,080,958 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,185 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,472 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,644 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,425 |
| Biggest Cities in New Jersey | 0 | - | 4.13 | 28,825 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,195 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,782 |
| 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 | 20,010 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,634 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,445 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,904 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,063 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,540 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,357 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,265 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,408 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,142 |
| 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 | 56,916 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,226 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,844 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,415 |
| 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 | 99,036 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,623 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,922 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,453 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,013 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,963 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,203 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,430 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,927 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,160 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,679 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,637 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,554 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,048 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,706 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,446 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,891 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,601 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,175 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,084 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,230 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,766 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,831 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,936 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,237 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,297 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,597 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,192 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,616 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,214 |
| North American Sports Cities | 0 | - | 4.83 | 172,569 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,373 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,376 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,498 |
| Name a City - European Countries | 0 | - | 4.90 | 65,545 |
| Name a Valid World City | 0 | - | 4.83 | 71,393 |
| Cities by Former Name | 0 | - | 4.83 | 91,663 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,093 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,213 |
| 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 | 53,510 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,730 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,626 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,419 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,227 |
| Countries by Capital City | 0 | - | 5.00 | 68,538 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,309 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,769 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,342 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,336 |
| Moved Capital Cities | 0 | - | 4.96 | 74,298 |
| World Capitals by Map | 0 | - | 5.00 | 287,222 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,423 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,625 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,618 |
| Random Country to Capital | 0 | - | 4.98 | 922,157 |
| Capitals Starting With H | 0 | - | 4.91 | 92,677 |
| Capitals Starting With K | 0 | - | 4.88 | 83,724 |
| Capitals Starting With L | 0 | - | 4.81 | 88,207 |
| Capitals Starting With M | 0 | - | 4.93 | 107,997 |
| Capitals Starting With P | 0 | - | 4.88 | 78,311 |
| Capitals Starting With R | 0 | - | 4.87 | 81,947 |
| Capitals Starting With S | 0 | - | 4.90 | 85,918 |
| Capitals Starting With T | 0 | - | 4.85 | 76,270 |
| Capitals Starting With W | 0 | - | 4.87 | 91,373 |
| Capitals Starting With A | 0 | - | 4.97 | 128,222 |
| Capitals Starting With B | 0 | - | 4.89 | 118,659 |
| Capitals Starting With D | 0 | - | 4.93 | 96,583 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,293 |
| U.S. State Flags | 0 | - | 4.88 | 171,095 |
| Hawaiian Islands | 0 | - | 4.83 | 42,758 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,362 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,113 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,974 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,864 |
| Largest City by Island | 0 | - | 4.87 | 72,010 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,116 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,125 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,689 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,374 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,521 |
| Megacities on a World Map | 0 | - | 4.98 | 255,130 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,069 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,470 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,111 |
| 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 | 91,343 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,691 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,027 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,929 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,611 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,933 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,600 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,883 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,116 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,381 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,315 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 131,029 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,904 |
| Former Capitals | 0 | - | 4.88 | 71,503 |
| Europe Capital to Country | 0 | - | 4.99 | 250,706 |
| Asia Capital to Country | 0 | - | 4.96 | 126,787 |
| Capital Cities Chain | 0 | - | 4.83 | 82,885 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,106 |
| European Capitals by Map | 0 | - | 4.99 | 139,767 |
| African Capitals by Map | 0 | - | 4.99 | 134,073 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,201 |
| Coldest World Capitals | 0 | - | 4.95 | 133,629 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,582 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,234 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,568 |
| European Coastal Capitals | 0 | - | 4.95 | 90,747 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,647 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,571 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,386 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,894 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,706 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,049 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,146 |
| New York Counties | 0 | - | 4.65 | 50,760 |
| Texas Counties | 0 | - | 4.56 | 76,834 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,018 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,514 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,454 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,791 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,741 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,499 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,599 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,977 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,605 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,017 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,426 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,623 |
| 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 | 284,303 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,314 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,920 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 148,919 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,107 |
