| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 113,519 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,684,131 |
| US States and State Capitals | 0 | - | 4.99 | 160,580 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,824 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,086 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,381 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,222 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,069 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,088 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,083 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,999 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,295 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,786 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,922 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,632 |
| Which City in Canada? | 0 | - | 4.82 | 56,891 |
| Hawaiian Islands | 0 | - | 4.83 | 42,583 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,387 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,243 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,534 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.98 | 100,592 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,164 |
| Biggest Cities in California | 0 | - | 4.35 | 139,584 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,958 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,548 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,316 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,190 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,686 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,131 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,128 |
| World Capitals Quiz | 0 | - | 5.00 | 5,054,413 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,691 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,888 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,884 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,910 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,388 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,849 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,849 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,296 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,675 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,864 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,739 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,297 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,294 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,045 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,530 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,259 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,794 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,070 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,968 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,388 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,021 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,524 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,491 |
| Biggest Cities in Europe | 0 | - | 4.72 | 544,356 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,262 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,070 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,562 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,925 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,550 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,599 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,091 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,139 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,022 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,707 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,681 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,410 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,217 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,511 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,574 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,091 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,175 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,446 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,061 |
| Biggest Cities in the United States | 0 | - | 4.93 | 973,116 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,046 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,950 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,438 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,222 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,097 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,655 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,812 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,548 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,863 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,950 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,506 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,131 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,361 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,843 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,951 |
| North American Sports Cities | 0 | - | 4.83 | 171,532 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,078 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,580 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,104 |
| Name a City - European Countries | 0 | - | 4.91 | 64,986 |
| Name a Valid World City | 0 | - | 4.83 | 70,740 |
| Cities by Former Name | 0 | - | 4.84 | 91,315 |
| Africa Capitals Quiz | 0 | - | 4.99 | 734,288 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,736 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,254 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,697 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,108 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,483 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,138 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,696 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,305 |
| Countries by Capital City | 0 | - | 5.00 | 67,619 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,823 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,316 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,775 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,640 |
| Moved Capital Cities | 0 | - | 4.96 | 73,936 |
| World Capitals by Map | 0 | - | 5.00 | 285,045 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,023 |
| Random Capital to Country | 0 | - | 4.99 | 2,585,409 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,237 |
| Random Country to Capital | 0 | - | 4.98 | 916,058 |
| Capitals Starting With H | 0 | - | 4.90 | 91,798 |
| Capitals Starting With K | 0 | - | 4.85 | 75,993 |
| Capitals Starting With L | 0 | - | 4.81 | 87,208 |
| Capitals Starting With M | 0 | - | 4.93 | 106,675 |
| Capitals Starting With P | 0 | - | 4.88 | 77,500 |
| Capitals Starting With R | 0 | - | 4.87 | 81,277 |
| Capitals Starting With S | 0 | - | 4.89 | 85,129 |
| Capitals Starting With T | 0 | - | 4.84 | 75,610 |
| Capitals Starting With W | 0 | - | 4.87 | 90,896 |
| Capitals Starting With A | 0 | - | 4.97 | 127,035 |
| Capitals Starting With B | 0 | - | 4.89 | 117,699 |
| Capitals Starting With D | 0 | - | 4.93 | 95,776 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,853 |
| U.S. State Flags | 0 | - | 4.89 | 169,148 |
| Washington Counties | 0 | - | 4.78 | 26,725 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,229 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,586 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,708 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,653 |
| Largest City by Island | 0 | - | 4.87 | 71,496 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,650 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,430 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,062 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,177 |
| Megacities on a World Map | 0 | - | 4.98 | 252,580 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,925 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,075 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,477 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,334 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,293 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,191 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,393 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,798 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,514 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,858 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,453 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,199 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,617 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,126 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,585 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,195 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,588 |
| Former Capitals | 0 | - | 4.88 | 71,314 |
| Europe Capital to Country | 0 | - | 4.99 | 249,118 |
| Asia Capital to Country | 0 | - | 4.96 | 126,255 |
| Capital Cities Chain | 0 | - | 4.84 | 82,321 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,304 |
| European Capitals by Map | 0 | - | 4.99 | 138,026 |
| African Capitals by Map | 0 | - | 4.99 | 132,979 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,585 |
| Coldest World Capitals | 0 | - | 4.95 | 133,255 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,827 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,699 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,070 |
| European Coastal Capitals | 0 | - | 4.95 | 90,199 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,389 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,505 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,103 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,639 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,235 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,489 |
| Pennsylvania Counties | 0 | - | 4.49 | 52,479 |
| New York Counties | 0 | - | 4.65 | 50,272 |
| North Carolina Counties | 0 | - | 4.53 | 52,995 |
| Georgia Counties | 0 | - | 4.50 | 49,322 |
| Virginia Counties | 0 | - | 4.45 | 33,131 |
| West Virginia Counties | 0 | - | 4.63 | 33,688 |
| Ohio Counties | 0 | - | 4.47 | 45,665 |
| Texas Counties | 0 | - | 4.55 | 76,511 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,802 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,518 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,609 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,457 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,415 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,264 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,724 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,321 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,924 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 116,026 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,709 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,599 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,764 |
| Official Cities in the UK | 0 | - | 4.89 | 282,429 |
