| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,514 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,877 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,016 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,793 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,836 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,364 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,845 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,654 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,452 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,771 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,439 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,429 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,173 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,888 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,879 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,589 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,124 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,293 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,332 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,961 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,095 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,698 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,199 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,022 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,815 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,752 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,623 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,576 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,856 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,988 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,978 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,267 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,358 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,683 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,887 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,913 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,869 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,043 |
| Biggest Cities by Language | 0 | - | 4.96 | 243,898 |
| Largest City by Island | 0 | - | 4.87 | 71,226 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,510 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,777 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,680 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,730 |
| Megacities on a World Map | 0 | - | 4.98 | 251,688 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,692 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,426 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,933 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,120 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,021 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,189 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,853 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,991 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,423 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,931 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,825 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,008 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,239 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,983 |
| Megacities on an Empty Map | 0 | - | 4.97 | 113,450 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,686 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,624 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,208 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,421 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,764 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,669 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,214 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,332 |
| Biggest Cities in California | 0 | - | 4.35 | 139,357 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,859 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,448 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,237 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,137 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,610 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,731 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,085 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,553 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,313 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,979 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,114 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,177 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,104 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,127 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,530 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,069 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,946 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,327 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,784 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,351 |
| Biggest City by Region | 0 | - | 4.50 | 36,033 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,956 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,074 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,886 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,063 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,261 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,252 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,993 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,288 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,626 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,496 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,575 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,859 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,935 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,651 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,102 |
| Biggest Cities in France | 0 | - | 4.69 | 222,757 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,159 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,726 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,546 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,335 |
| Biggest Cities in China | 0 | - | 4.52 | 157,376 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,017 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,024 |
| Biggest Cities in India | 0 | - | 4.70 | 67,421 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,897 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,148 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,038 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,609 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,750 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,462 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,802 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,915 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,430 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,077 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,315 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,786 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,869 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,609 |
| Biggest Cities in History | 0 | - | 4.52 | 89,250 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,178 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,239 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,753 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,568 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,251 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,818 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,042 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,709 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,155 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,800 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,125 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,660 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,177 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,664,419 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,632 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,416 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,894 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,483 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,989 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,878 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,697 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,489 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,875 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,315 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,926 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,467 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,286 |
| Cities of Ireland | 0 | - | 4.51 | 50,406 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,117 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,434 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,624 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,971 |
| Vietnam War Countries | 0 | - | 4.83 | 93,764 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,673 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,577 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,278 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,065 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,308 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,596 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,797 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,763 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,574 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,021 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,858 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,865 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,796 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,026 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,891 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,757 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,969 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,632 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,447 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,280 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,845 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,131 |
| Countries with Megacities | 0 | - | 4.99 | 248,053 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,475 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,131 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,717 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,611 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,310 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,103 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,920 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,265 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,490 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,695 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,846 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,910 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,977 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,608 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,625 |
