| Biggest Cities in the World | 0 | - | 4.91 | 793,256 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,040 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,759 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,607 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,067 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,251 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,008 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,316 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,415 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,926 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,856 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,000 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,362 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,438 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,965 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,008 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,985 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,129 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,522 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,703 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,304 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,960 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,369 |
| Largest City by Island | 0 | - | 4.87 | 71,334 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,557 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,869 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,851 |
| Megacities on a World Map | 0 | - | 4.98 | 252,055 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,991 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,280 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,194 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,402 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,944 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,630 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,026 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,639 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,244 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,592 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,345 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,014 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,690 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,722 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,519 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,372 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 68,665 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,249 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,087 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,034 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,267 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,700 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,698 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,202 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,254 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,476 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,306 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,229 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,453 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,174 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,437 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,291 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,468 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,622 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,725 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,688 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,958 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,145 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,953 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,779 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,852 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,579 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,078 |
| Countries with Megacities | 0 | - | 4.99 | 248,550 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,958 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,443 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,332 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,390 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,764 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,955 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,118 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,354 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,146 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,968 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,815 |
| Biggest City by Region | 0 | - | 4.50 | 36,052 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,982 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,087 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,272 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,044 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,308 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,990 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,714 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,157 |
| Biggest Cities in France | 0 | - | 4.69 | 222,934 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,321 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,766 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,593 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,415 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,675 |
| Biggest Cities in China | 0 | - | 4.52 | 157,594 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,104 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,039 |
| Biggest Cities in India | 0 | - | 4.70 | 67,473 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,079 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,594 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 153,269 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 42,128 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,890 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,357 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,219 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,732 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,233 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,003 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,025 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,705 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,716 |
| Biggest Cities in History | 0 | - | 4.52 | 89,315 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,199 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,263 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,285 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,869 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,080 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,780 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,207 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,874 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,194 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,727 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,253 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,004 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,686 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,297 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,752 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,278 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,670 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,845 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,925 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,735 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,998 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,712 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,502 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,714 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,216 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,137 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,372 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,231 |
| Cities of Ireland | 0 | - | 4.51 | 50,457 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,128 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,874 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,603 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,484 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,846 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,731 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,977 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,471 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,439 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,484 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,585 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,485 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,350 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,267 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,977 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,716 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,716 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,125 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,149 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,374 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,109 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,557 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,995 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,171 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,282 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,811 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,010 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,583 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,049 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,871 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,870 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,135 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,129 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,946 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,796 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,035 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,712 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,840 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,862 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,608 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,095 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,901 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,683 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 118,438 |
| Most Populous Islands | 0 | - | 4.79 | 122,152 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,228 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,442 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,678 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,982 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,377 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,916 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,872 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,898 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,607 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,523 |
