| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 131,644 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,779 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,451 |
| 500 Biggest US Cities | 0 | - | 4.87 | 98,045 |
| Biggest Cities in the World | 0 | - | 4.89 | 686,589 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,825 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,419 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 91,045 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,690 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 29,034 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,352 |
| Biggest City in Every Country | 0 | - | 4.97 | 78,772 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,544 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 169,671 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 92,031 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,161 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 64,876 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 199,135 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,411 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,242 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 371,096 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,194 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,349 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 303,972 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,424 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,673 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,356 |
| Biggest Cities in the United States | 0 | - | 4.92 | 816,913 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 333,801 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,000 |
| Biggest Cities by Language | 0 | - | 4.95 | 213,875 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 64,846 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,445 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,783 |
| Megacities on a World Map | 0 | - | 4.98 | 220,660 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 43,932 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 91,868 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 513,309 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,838 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,407 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.67 | 56,293 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,518 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,342 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,292 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,178 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 50,911 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,717 |
| Biggest Cities in Germany | 0 | - | 4.95 | 262,934 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,867 |
| Biggest Cities in Europe | 0 | - | 4.76 | 464,286 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 91,209 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,594 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,537 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,404 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,231 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 76,064 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 63,730 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,848 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 58,913 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,321 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,970 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,199 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,563 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,761 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,567 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,845 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,547 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,359 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,532 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,064 |
| Biggest City by Region | 0 | - | 4.49 | 33,635 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,363 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,358 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,594 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,019 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,368 |
| Biggest Cities in Mexico | 0 | - | 4.55 | 29,225 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 118,954 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,920 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 77,936 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,708 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,923 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,290 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,939 |
| Countries Closest to Alaska | 0 | - | 4.93 | 98,942 |
| Countries Closest to Maine | 0 | - | 4.85 | 58,895 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,184 |
| Biggest City by Island | 0 | - | 4.57 | 45,766 |
| Biggest Cities in History | 0 | - | 4.50 | 80,203 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 67,955 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,125 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,573 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 112,179 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,846 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,624 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 110,462 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 128,782 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,675 |
| Countries Closest to United States A-Z | 0 | - | 4.86 | 107,319 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,235 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 36,018 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,539 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,386 |
| Biggest Cities in France | 0 | - | 4.76 | 199,372 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,488 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,158 |
| Biggest Cities in Poland | 0 | - | 4.56 | 48,063 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,115 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,419 |
| Biggest Cities in China | 0 | - | 4.64 | 138,548 |
| Cities of Ireland | 0 | - | 4.43 | 39,720 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,555 |
| Biggest Cities in India | 0 | - | 4.72 | 62,366 |
| Biggest Cities in Italy | 0 | - | 4.65 | 217,076 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,138 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,726 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,105 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,180 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,978 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,659 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 27,027 |
| Five Biggest Cities by Country | 0 | - | 4.67 | 152,430 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,107 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,240 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,547 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,864 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,465 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,933 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,708 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,461 |
| All Cities in China with Population of 1 Million | 0 | - | 4.79 | 38,601 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,945 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,758 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 28,040 |
| Biggest Cities in California | 0 | - | 4.35 | 130,396 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,334 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,813 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,662 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,684 |
| Biggest Cities in Texas | 0 | - | 4.26 | 111,341 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,367 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 193,860 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,691 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,489 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,723 |
| Countries with Megacities | 0 | - | 4.99 | 196,972 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,320 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,822 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,206 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,780 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,648 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,615 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 81,128 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,439 |
| Largest Nordic Cities on a Map | 0 | - | 4.76 | 23,251 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,741 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,786 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,812 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,997 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,976 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,769 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,639 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,219 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 458,879 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 64,988 |
| Biggest U.S. Cities A-Z | 0 | - | 4.63 | 122,085 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,947 |
| Rivers of the United States | 0 | - | 4.91 | 56,907 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,949 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,055 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,924 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 108,964 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,917 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,428 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,255 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,173 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.37 | 85,642 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 71,903 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.29 | 80,216 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 84,815 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 66,113 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,884 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 60,129 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,532 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 24,919 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 29,896 |
| Biggest Cities in Virginia | 0 | - | 4.23 | 22,905 |
| Biggest Cities in Oregon | 0 | - | 4.10 | 18,720 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,545 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 28,462 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,418 |
| Biggest Cities in Louisiana | 0 | - | 4.12 | 18,197 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 27,557 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,239 |
| Biggest Cities in Missouri | 0 | - | 4.21 | 15,817 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 19,102 |
| Biggest Cities in Indiana | 0 | - | 4.28 | 19,791 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 74,646 |
| Which City in Canada? | 0 | - | 4.89 | 45,172 |
| Countries Closest to Hawaii | 0 | - | 4.51 | 47,660 |
