| Biggest Cities in Brazil | 0 | - | 4.56 | 52,887 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,062 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,450 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,247 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,717 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,093 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,716 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,552 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,038 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,696 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,041 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,748 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,308 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,119 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,340 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,199 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,403 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,615 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,979 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,181 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,909 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,094 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,265 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,069 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,399 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,347 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,484 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,011 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,057 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,225 |
| Biggest Cities in the United States | 0 | - | 4.93 | 971,515 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,764 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,691 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,769 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,748 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,304 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,004 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,220 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,038 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,811 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,107 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,389 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,437 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,293 |
| Largest City by Island | 0 | - | 4.87 | 71,372 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,580 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,932 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,928 |
| Megacities on a World Map | 0 | - | 4.98 | 252,244 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,010 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,334 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,516 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,593 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,686 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,779 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,166 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,389 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,546 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,574 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,244 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,072 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,679 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,268 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,768 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,708 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,243 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,153 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,285 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,021 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,743 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,179 |
| Biggest Cities in France | 0 | - | 4.70 | 223,034 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,405 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,789 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,627 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,459 |
| Biggest Cities in China | 0 | - | 4.53 | 157,691 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,332 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,060 |
| Biggest Cities in India | 0 | - | 4.70 | 67,496 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,185 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,033 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,045 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,185 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,980 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,832 |
| Biggest City by Region | 0 | - | 4.50 | 36,057 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,990 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,197 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,099 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,276 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,065 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,316 |
| Cities of Ireland | 0 | - | 4.51 | 50,482 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,991 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,137 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,051 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,972 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,759 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,390 |
| Biggest Cities in History | 0 | - | 4.52 | 89,348 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,211 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,392 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,905 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,562 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,275 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,296 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,827 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,711 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,265 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,302 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,053 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,883 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,824 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,232 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,909 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,233 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,777 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,291 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,888 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,630 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,372 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,766 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,648 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,906 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,029 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,952 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,254 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,506 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,622 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,936 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,500 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,002 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,715 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,507 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,136 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,394 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,500 |
| Biggest Cities in California | 0 | - | 4.35 | 139,494 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,930 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,503 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,276 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,170 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,654 |
| Biggest Cities in Texas | 0 | - | 4.28 | 119,076 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,117 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,544 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,750 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,491 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,036 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,899 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,793 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,814 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,048 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,780 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,331 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,569 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,747 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,875 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,246 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,177 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,969 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,812 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,076 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,755 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,497 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,209 |
| Countries with Megacities | 0 | - | 4.99 | 248,797 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,057 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,513 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,429 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,459 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,952 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,656 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,937 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,400 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,253 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,849 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,296 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,061 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,066 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,611 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,726 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,301 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,735 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,738 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,234 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,280 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,494 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,316 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,246 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,470 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,183 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,069 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,634 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,792 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,519 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,848 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,945 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,480 |
