| Biggest Cities in the World | 0 | - | 4.92 | 803,798 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,730 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,660 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,864 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,222 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,121 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,569 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,094 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,878 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,743 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,481 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,550 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,079 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,663 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,541 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,750 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,729 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,443 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,424 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,392 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,423 |
| Largest City by Island | 0 | - | 4.87 | 72,289 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,328 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,515 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,006 |
| Megacities on a World Map | 0 | - | 4.98 | 256,259 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,983 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,663 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,484 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,541 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,905 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,828 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,004 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,448 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,716 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,440 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,833 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,915 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,343 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,025 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,401 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,495 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,241 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,904 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,360 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,473 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,185 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,428 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,657 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,745 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,794 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,860 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,633 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,617 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,837 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,604 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,428 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,866 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,829 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,079 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,065 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,060 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,291 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,243 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,872 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,760 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,740 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,863 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,605 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,758 |
| Countries with Megacities | 0 | - | 4.99 | 266,101 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,357 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,809 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,780 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,634 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,934 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,386 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,606 |
| Biggest Cities in France | 0 | - | 4.70 | 224,958 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,889 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,668 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,125 |
| Biggest Cities in China | 0 | - | 4.53 | 159,558 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,384 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,883 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,044 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,296 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,154 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,682 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,483 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,760 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,032 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,575 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,964 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,614 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,623 |
| Biggest Cities in History | 0 | - | 4.52 | 90,468 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,110 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,766 |
| Biggest City by Region | 0 | - | 4.50 | 36,343 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,273 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,078 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,018 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,558 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,481 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,523 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,637 |
| Cities of Ireland | 0 | - | 4.51 | 50,842 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,994 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,050 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,839 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,434 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,901 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,562 |
| Random U.S. States on a Map | 0 | - | 4.96 | 629,233 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,394 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,176 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,012 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,749 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,396 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,689 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,745 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,830 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,414 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,831 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,095 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,466 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,593 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,723 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,056 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,147 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,919 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,123 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,129 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,894 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,792 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,696 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,436 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,832 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,721 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,687 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,767 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,841 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,585 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,734 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,417 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,097 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,437 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,759 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,619 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,108 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,465 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,708 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,219 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,541 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,713 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,701 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,938 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,547 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,282 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,057 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,991 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,687 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,691 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,120 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,058 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,965 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,493 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,475 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,315 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,399 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,686 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,198 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,189 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,328 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,401 |
| Biggest Cities in India | 0 | - | 4.64 | 67,982 |
| Biggest Cities in California | 0 | - | 4.35 | 140,250 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,316 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,858 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,976 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,791 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,582 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,609 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,699 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,408 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,207 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,691 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,049 |
| Most Populous Islands | 0 | - | 4.80 | 123,208 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,358 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,610 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,941 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,972 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,415 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,350 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,410 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,416 |
