| Biggest Cities in Mexico | 0 | - | 4.52 | 39,045 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,717 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,868 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,885 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,428 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,862 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,654 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,462 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,787 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,453 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,008 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,451 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,176 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,971 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,107 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,724 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,211 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,053 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,825 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,908 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,758 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,896 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,632 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,863 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,274 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,135 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,365 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,895 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,916 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,879 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,420 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,365 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,521 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,634 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,587 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,477 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,886 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,024 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,801 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,691 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,820 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,336 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,058 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,054 |
| Largest City by Island | 0 | - | 4.87 | 71,235 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,515 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,786 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,693 |
| Megacities on a World Map | 0 | - | 4.98 | 251,707 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,939 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,139 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,201 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,435 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,733 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,024 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,250 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,015 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,530 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,991 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,983 |
| Megacities on an Empty Map | 0 | - | 4.97 | 113,842 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,628 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,211 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,574 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,692 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,627 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,993 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,933 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,263 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,179 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,106 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,133 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,938 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,656 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,104 |
| Biggest Cities in France | 0 | - | 4.69 | 222,773 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,181 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,730 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,550 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,344 |
| Biggest Cities in China | 0 | - | 4.52 | 157,390 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,021 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,027 |
| Biggest Cities in India | 0 | - | 4.70 | 67,426 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,909 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,078 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,947 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,784 |
| Biggest City by Region | 0 | - | 4.50 | 36,036 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,959 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,120 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,065 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,255 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,999 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,290 |
| Cities of Ireland | 0 | - | 4.51 | 50,410 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,978 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,118 |
| Biggest Cities in California | 0 | - | 4.35 | 139,360 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,861 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,451 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,239 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,137 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,612 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,735 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,086 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,617 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,330 |
| Biggest Cities in History | 0 | - | 4.52 | 89,255 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,179 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,353 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,889 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,426 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,242 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,766 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,672 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,214 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,253 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,021 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,859 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,712 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,159 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,804 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,132 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,667 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,183 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,828 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,558 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,317 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,753 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,582 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,863 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,982 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,862 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,072 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,316 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,676 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,894 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,484 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,989 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,699 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,490 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,079 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,321 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,468 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,149 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,041 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,609 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,751 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,463 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,808 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,919 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,432 |
| 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 | 20,787 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,875 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,666 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,309 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,428 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,889 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,877 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,508 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,797 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,931 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,765 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,292 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,444 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,630 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,865 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,985 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,035 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,892 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,759 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,975 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,639 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,018 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,450 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,858 |
| Countries with Megacities | 0 | - | 4.99 | 248,083 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,737 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,322 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,124 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,270 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,854 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,596 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,913 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,285 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,135 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,507 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,137 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,616 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,932 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,502 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,697 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,287 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,619 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,632 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,161 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,205 |
