| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,989 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,189 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,993 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,727 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,378 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,922 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,851 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,216 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,021 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,583 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,063 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,084 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,112 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,211 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,685 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,269 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,635 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,577 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,094 |
| Biggest Cities in the United States | 0 | - | 4.94 | 976,353 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,687 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,615 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,105 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,415 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,039 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,143 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,531 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,294 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,766 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 577,303 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,588 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,750 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,563 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,844 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 63,140 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,449 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,969 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,101 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,745 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,968 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,157 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,432 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,494 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 113,952 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,117 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,127 |
| Largest City by Island | 0 | - | 4.87 | 71,735 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,828 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,749 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,301 |
| Megacities on a World Map | 0 | - | 4.98 | 253,648 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,253 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,778 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,327 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,149 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,965 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,702 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,455 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,824 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,443 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,932 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,182 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,512 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,778 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,040 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,141 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,185 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,804 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,822 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,225 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,116 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,697 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,416 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,258 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 65,170 |
| Cities of Ireland | 0 | - | 4.51 | 50,590 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,403 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,577 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,959 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,862 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,924 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,785 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,349 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,125 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,491 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,844 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,437 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,444 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,058 |
| Biggest Cities in History | 0 | - | 4.52 | 90,044 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,935 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 76,636 |
| Biggest City by Region | 0 | - | 4.50 | 36,135 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,063 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,768 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,492 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,369 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,162 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,334 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,192 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,899 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,039 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,381 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,413 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,335 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,129 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,978 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,332 |
| Biggest Cities in France | 0 | - | 4.70 | 223,690 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,957 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,921 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,040 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,818 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,273 |
| Biggest Cities in China | 0 | - | 4.52 | 158,320 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,723 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,180 |
| Biggest Cities in India | 0 | - | 4.64 | 67,691 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,848 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,154 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,044 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,159 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,489 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,250 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,566 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,167 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,928 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,681 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,562 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,415 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,263 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 116,481 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,380 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,285 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,623 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,570 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,145 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,961 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,179 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,926 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,041 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,812 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,736 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,974 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,324 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,012 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,041 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,763 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,542 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,881 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,553 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,615 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,047 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,157 |
| Biggest Cities in California | 0 | - | 4.35 | 139,748 |
| Biggest Cities in Florida | 0 | - | 4.24 | 72,048 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,607 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,366 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,223 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,914 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,728 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,248 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,162 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,554 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,188 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,003 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,412 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,103 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,606 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,848 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,865 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,776 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,134 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,586 |
| Countries with Megacities | 0 | - | 4.99 | 261,464 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,505 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,731 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,993 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,310 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,054 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,273 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,418 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,082 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,967 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,792 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 58,124 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,843 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,994 |
| Colour in the Flag Map by Guessing Cities #2 | 0 | - | 4.72 | 49,519 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,360 |
| Cities in European Economic Areas on a Map | 0 | - | 4.69 | 17,525 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,464 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,038 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,248 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,451 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,507 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,654 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,461 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,412 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,631 |
