| Biggest Cities in Brazil | 0 | - | 4.56 | 52,852 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,871 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,037 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,014 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,918 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,950 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,672 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,498 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,874 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,558 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,017 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,560 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,236 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,023 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,196 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,886 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,278 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,278 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,883 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,012 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,816 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,983 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,880 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,939 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,329 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,214 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,408 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,941 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,972 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,089 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,216 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,501 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,582 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,697 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,656 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,770 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,929 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,117 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,892 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,745 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,062 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,358 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,182 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,634 |
| Largest City by Island | 0 | - | 4.87 | 71,293 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,535 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,839 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,793 |
| Megacities on a World Map | 0 | - | 4.98 | 251,927 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,969 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,226 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,335 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,579 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,533 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,745 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,080 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,300 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,210 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,543 |
| Megacities on an Empty Map | 0 | - | 4.97 | 115,984 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,997 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,651 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,230 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,716 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,657 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,199 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,125 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,201 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,976 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,689 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,134 |
| Biggest Cities in France | 0 | - | 4.69 | 222,875 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,273 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,749 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,574 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,391 |
| Biggest Cities in China | 0 | - | 4.53 | 157,489 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,075 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,034 |
| Biggest Cities in India | 0 | - | 4.70 | 67,452 |
| Biggest Cities in Italy | 0 | - | 4.75 | 240,005 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,000 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,001 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,120 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,962 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,804 |
| Biggest City by Region | 0 | - | 4.50 | 36,044 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,974 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,148 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,078 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,265 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,027 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,300 |
| Cities of Ireland | 0 | - | 4.51 | 50,440 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,982 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,123 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 36,022 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,951 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,672 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,354 |
| Biggest Cities in History | 0 | - | 4.52 | 89,291 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,187 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,367 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,895 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,485 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,249 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,272 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,781 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,691 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,234 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,276 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,044 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,866 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,750 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,181 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,840 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,170 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,704 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,213 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,849 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,579 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,335 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,762 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,607 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,880 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,997 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,896 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,133 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,396 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,040 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,910 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,490 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,995 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,706 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,496 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,098 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,352 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,484 |
| Biggest Cities in California | 0 | - | 4.35 | 139,427 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,896 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,481 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,256 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,153 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,626 |
| Biggest Cities in Texas | 0 | - | 4.28 | 119,022 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,107 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,348 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,476 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,455 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,948 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,884 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,615 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,805 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,972 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,770 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,310 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,489 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,663 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,867 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,079 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,094 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,925 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,775 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,016 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,680 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,466 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,979 |
| Countries with Megacities | 0 | - | 4.99 | 248,362 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,872 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,395 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,264 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,327 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,888 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,623 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,927 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,339 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,188 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,646 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,191 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,657 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,990 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,548 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,706 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,291 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,663 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,667 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,184 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,228 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,462 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,285 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,204 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,432 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,169 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,057 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,618 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,772 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,486 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,835 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,936 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,462 |
