| Biggest Cities in the World | 0 | - | 4.91 | 791,767 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,870 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,972 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,466 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,100 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,765 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,739 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,671 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,246 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,775 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,197 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,292 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,845 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,847 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,724 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,380 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,204 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,879 |
| Biggest Cities by Language | 0 | - | 4.96 | 241,394 |
| Largest City by Island | 0 | - | 4.87 | 71,165 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,472 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,701 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,496 |
| Megacities on a World Map | 0 | - | 4.98 | 251,428 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,484 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,006 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,896 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,997 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,046 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,338 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,586 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,962 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,186 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,693 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,626 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,679 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,403 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,647 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,303 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,125 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,748 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,588 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,174 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,739 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,769 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,000 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,440 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,558 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,827 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,956 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,700 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,629 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,019 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,929 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,766 |
| Biggest City by Region | 0 | - | 4.50 | 36,024 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,937 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,709 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,534 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,055 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,247 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,964 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,278 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,657 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,657 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,693 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,988 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,887 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,549 |
| Biggest Cities in History | 0 | - | 4.52 | 89,219 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,163 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,231 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,229 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,067 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,317 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,626 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,074 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,715 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,028 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,313 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,105 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,663 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,159 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,078 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,537 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,836 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,055 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,990 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,217 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,202 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,388 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,884 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,513 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,988 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,813 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,688 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,482 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,284 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,888 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,456 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,395 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,397 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,584 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,584 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,835 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,932 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,190 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,249 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,799 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,065 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,707 |
| Countries with Megacities | 0 | - | 4.99 | 247,761 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,560 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,239 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,960 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,185 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,079 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,777 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,860 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,935 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,819 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,702 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,888 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,555 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,432 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,293 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,334 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,801 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,805 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,879 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,540 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,365 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,295 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,741 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,650 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,900 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,196 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,965 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,886 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,621 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,076 |
| Biggest Cities in France | 0 | - | 4.69 | 222,650 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,075 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,709 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,523 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,279 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,608 |
| Biggest Cities in China | 0 | - | 4.53 | 157,277 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,965 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,004 |
| Biggest Cities in India | 0 | - | 4.70 | 67,391 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,760 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,835 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,277 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,228 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,075 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,338 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,070 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,577 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,859 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,442 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,677 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,965 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,960 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,749 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,789 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,025 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,577 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,592 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,122 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,174 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,427 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,251 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,163 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,389 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,445 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,445 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,221 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,535 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,105 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,525 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,721 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,368 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,471 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,052 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,651 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,343 |
| Cities of Ireland | 0 | - | 4.51 | 50,380 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,109 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,980 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,914 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,655 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,447 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,382 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,735 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,653 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,914 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,352 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,275 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,292 |
