| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 131,650 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,456 |
| 500 Biggest US Cities | 0 | - | 4.87 | 98,061 |
| Biggest Cities in the World | 0 | - | 4.89 | 686,632 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,832 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,421 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,694 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 29,037 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 76,069 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 199,146 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,248 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 371,110 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 303,986 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,434 |
| Biggest Cities in the United States | 0 | - | 4.93 | 817,528 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 333,832 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,355 |
| Biggest City in Every Country | 0 | - | 4.97 | 78,779 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 169,680 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 92,035 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,167 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 43,932 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 64,882 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,418 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.91 | 91,873 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,202 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.67 | 56,295 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,521 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,350 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,676 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.81 | 52,343 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,357 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 55,183 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 109,000 |
| Biggest Cities by Language | 0 | - | 4.95 | 213,882 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.94 | 64,852 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,451 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,784 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 50,912 |
| Megacities on a World Map | 0 | - | 4.98 | 220,667 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 91,048 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 513,335 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,840 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,410 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 43,720 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,301 |
| Biggest Cities in Germany | 0 | - | 4.95 | 262,952 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,186 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,940 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 61,544 |
| Biggest Cities in Sweden | 0 | - | 4.82 | 37,232 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,875 |
| Biggest Cities in Europe | 0 | - | 4.76 | 464,303 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,540 |
| Biggest English Cities by Century | 0 | - | 4.90 | 99,563 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 63,732 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,848 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 59,012 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,323 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,972 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,201 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 28,259 |
| Biggest Cities in California | 0 | - | 4.35 | 130,397 |
| Biggest Cities in Florida | 0 | - | 4.20 | 67,335 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,819 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,664 |
| 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 | 23,368 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,779 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 77,937 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,765 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,568 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 36,848 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 64,464 |
| 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 | 40,951 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,361 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,536 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 118,957 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,065 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 62,922 |
| Biggest City by Region | 0 | - | 4.49 | 33,637 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,366 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,594 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,358 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,595 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,711 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,019 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,923 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 37,212 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 91,217 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 36,020 |
| Biggest Cities in Japan | 0 | - | 4.66 | 75,571 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,388 |
| Biggest Cities in France | 0 | - | 4.76 | 199,385 |
| Biggest Cities in Spain | 0 | - | 4.50 | 153,490 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 50,159 |
| Biggest Cities in Poland | 0 | - | 4.56 | 48,066 |
| Biggest Cities in the UK | 0 | - | 4.46 | 93,422 |
| Biggest Cities in China | 0 | - | 4.64 | 138,567 |
| Cities of Ireland | 0 | - | 4.43 | 39,720 |
| Biggest Cities in Canada | 0 | - | 4.66 | 120,409 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,556 |
| Biggest Cities in India | 0 | - | 4.72 | 62,370 |
| Biggest Cities in Italy | 0 | - | 4.65 | 217,089 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 24,921 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 29,898 |
| Biggest Cities in Virginia | 0 | - | 4.23 | 22,905 |
| Biggest Cities in Oregon | 0 | - | 4.10 | 18,722 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,546 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 28,462 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,420 |
| Biggest Cities in Louisiana | 0 | - | 4.12 | 18,200 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 27,558 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,240 |
| Biggest Cities in Missouri | 0 | - | 4.21 | 15,817 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 19,103 |
| Biggest Cities in Indiana | 0 | - | 4.28 | 19,792 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 136,186 |
| Biggest City by Island | 0 | - | 4.57 | 45,767 |
| Biggest Cities in History | 0 | - | 4.50 | 80,206 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 67,956 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,236 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.49 | 40,125 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,468 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,575 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,370 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 112,186 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 106,851 |
| Biggest Cities Starting With H | 0 | - | 4.55 | 97,634 |
| Biggest Cities Starting With L | 0 | - | 4.45 | 110,471 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 128,790 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,686 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,168,494 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 99,107 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,182 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,979 |
| 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 | 152,436 |
| 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 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,616 |
| Northernmost Major City by Country | 0 | - | 4.56 | 30,865 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,935 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,709 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,758 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 193,865 |
| Vietnam War Countries | 0 | - | 4.81 | 86,406 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.84 | 50,971 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,739 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,490 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,139 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,731 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 64,988 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 81,137 |
| 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 | 167,744 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,116 |
| Biggest Cities in Mexico | 0 | - | 4.55 | 29,227 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,547 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,786 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,812 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 21,557 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 148,003 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,980 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 78,769 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,651 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 116,225 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,953 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,727 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,059 |
| Countries with Megacities | 0 | - | 4.99 | 196,979 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,933 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,967 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,330 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,918 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,827 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,211 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,439 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,783 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,658 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,479 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,255 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,173 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.39 | 22,311 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,290 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.38 | 85,729 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.38 | 71,996 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.31 | 80,310 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.11 | 85,131 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 66,128 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,900 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 60,144 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,547 |
| Biggest U.S. Cities A-Z | 0 | - | 4.63 | 122,092 |
| Random American Countries on a Map | 0 | - | 4.95 | 86,080 |
