| Biggest Cities in the World | 0 | - | 4.91 | 788,970 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,406 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,356 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,407 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,603 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,483 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,284 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,354 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,131 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,365 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,913 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,027 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,610 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,527 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,205 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,713 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,395 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,138 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,636 |
| Largest City by Island | 0 | - | 4.87 | 70,921 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,180 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,363 |
| Biggest European Cities by Century | 0 | - | 4.98 | 128,670 |
| Megacities on a World Map | 0 | - | 4.98 | 250,051 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,266 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,700 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,717 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,430 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,952 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,497 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,660 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,029 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,488 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,289 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,191 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,358 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,841 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,253 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,755 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 141,994 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,864 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,459 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,026 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,210 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,419 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,621 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,813 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,875 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,631 |
| Biggest City by Region | 0 | - | 4.50 | 35,959 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,859 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,103 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,330 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,100 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,994 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,195 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,870 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,580 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,580 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,251 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,421 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,226 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,577 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,477 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,531 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,637 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,317 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,431 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,814 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,391 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.86 | 55,593 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 123,958 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,720 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,901 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,898 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,250 |
| Biggest Cities in History | 0 | - | 4.52 | 89,020 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,034 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,148 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,135 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,817 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,960 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,644 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,453 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,156 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,110 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,911 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,823 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 46,982 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,242 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,825 |
| Countries with Megacities | 0 | - | 4.99 | 246,049 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,733 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,714 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,200 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,644 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,058 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,979 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,769 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,159 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,920 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,516 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,717 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,828 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,236 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,436 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 165,505 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,687 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,197 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,319 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,139 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,009 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,701 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,634 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,732 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,381 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,461 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,131 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,159 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,290 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,496 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,834 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,107 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,657 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,574 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,861 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,138 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,498 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,617 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,011 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,624 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,064 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,072 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,126 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,724 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,260 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,442 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,207 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,612 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,927 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,670 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,412 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.41 | 51,182 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,362 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,308 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,719 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,894 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,695 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,443 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,962 |
| Biggest Cities in France | 0 | - | 4.69 | 221,738 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,625 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,584 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,391 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,037 |
| Biggest Cities in China | 0 | - | 4.53 | 156,786 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,680 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,924 |
| Biggest Cities in India | 0 | - | 4.70 | 67,269 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,219 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,367 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,400 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 84,981 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,040 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,338 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,159 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,074 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,268 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,703 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,261 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,117 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,168 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,485 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,467 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,702 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,073 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,976 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,937 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,879 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,861 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,695 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,676 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,909 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,276 |
| Most Populous Islands | 0 | - | 4.78 | 121,889 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,185 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,383 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,671 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,767 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,647 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,876 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,582 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,745 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,226 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,788 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,033 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,841 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,423 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,938 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,561 |
