| Biggest Cities in the World | 0 | - | 4.91 | 805,225 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,909 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,895 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,294 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,413 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,820 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,742 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,221 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,489 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,931 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,594 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,686 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,185 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,364 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,257 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,547 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,924 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,760 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,537 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,609 |
| Largest City by Island | 0 | - | 4.87 | 72,422 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,408 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,660 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,117 |
| Megacities on a World Map | 0 | - | 4.98 | 256,770 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,745 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,635 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,310 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,621 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,550 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,967 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,103 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,406 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,158 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,492 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,302 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,960 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,681 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,674 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,405 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,033 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,992 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,260 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,510 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,421 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,128 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,882 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,075 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,644 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,145 |
| Biggest City by Region | 0 | - | 4.50 | 36,387 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,327 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,685 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,300 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,437 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,539 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,564 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,982 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,505 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,399 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,404 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,129 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,768 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,930 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,958 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,813 |
| Biggest Cities in History | 0 | - | 4.52 | 90,568 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,958 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,606 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,690 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,315 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,534 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,439 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,990 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,993 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,118 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,148 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,937 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,547 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,061 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,703 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,135 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,176 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,136 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,913 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,893 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,757 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,477 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,170 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,646 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,373 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,049 |
| Countries with Megacities | 0 | - | 4.99 | 266,926 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,762 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,070 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,080 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,189 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,129 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,970 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,991 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,300 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,087 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,799 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,556 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,513 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,986 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,100 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,769 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,779 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,482 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,320 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,806 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,116 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,405 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,293 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,972 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,624 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,878 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,186 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,577 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,250 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,577 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,503 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,078 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,153 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,158 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,996 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,108 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,529 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,174 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,873 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,335 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,053 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,736 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,565 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,368 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,699 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,492 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,744 |
| Biggest Cities in France | 0 | - | 4.70 | 225,240 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,107 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,271 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,263 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,796 |
| Biggest Cities in China | 0 | - | 4.53 | 159,815 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,460 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,443 |
| Biggest Cities in India | 0 | - | 4.64 | 68,048 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,309 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,588 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,859 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,362 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,013 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,380 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,889 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,304 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,631 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,732 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,868 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,183 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,988 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,458 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,519 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,920 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,583 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,411 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,561 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,534 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,757 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,811 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,858 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,905 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,668 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,673 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,893 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,769 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,858 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,501 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,179 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,504 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,846 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,734 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,616 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,889 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,334 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,973 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,644 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,834 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,822 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,956 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,533 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,694 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,535 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,744 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,256 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,216 |
| Most Populous Islands | 0 | - | 4.80 | 123,307 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,380 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,645 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,973 |
