| Biggest Cities in the World | 0 | - | 4.92 | 790,172 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,624 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,627 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,846 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,828 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,976 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,468 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,499 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,545 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,558 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,041 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,149 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,726 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,662 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,502 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,382 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,726 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,408 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,827 |
| Largest City by Island | 0 | - | 4.87 | 71,020 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,378 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,522 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,980 |
| Megacities on a World Map | 0 | - | 4.98 | 250,894 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,145 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,784 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,853 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,693 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,131 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,981 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,999 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,291 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,559 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,483 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,285 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,488 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,949 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,581 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,895 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,147 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,975 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,528 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,111 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,435 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,554 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,772 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,900 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,899 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,691 |
| Biggest City by Region | 0 | - | 4.50 | 35,993 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,893 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,241 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,435 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,265 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,013 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,217 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,915 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,706 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,752 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,468 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,517 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,250 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,746 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,580 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,619 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,755 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,426 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,591 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,939 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,086 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,644 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,196 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,810 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,217 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,668 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,373 |
| Biggest Cities in History | 0 | - | 4.52 | 89,114 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,114 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,181 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,190 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,858 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,975 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,663 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,462 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,207 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,282 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,937 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,002 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,043 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,275 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,084 |
| Countries with Megacities | 0 | - | 4.99 | 246,711 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,018 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,886 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,441 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,802 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,106 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,026 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,898 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,785 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,554 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,584 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,745 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,839 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,302 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,470 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,634 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,769 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,275 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,388 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,333 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,100 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,805 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,877 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,858 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,461 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,571 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,239 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,219 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,307 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,638 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,853 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,222 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,695 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,608 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,878 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,162 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,547 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,009 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,193 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,652 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,084 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,132 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,301 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,892 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,377 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,562 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,283 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,640 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,989 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,752 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,468 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,238 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,420 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,325 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,772 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,921 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,782 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,512 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,017 |
| Biggest Cities in France | 0 | - | 4.69 | 222,002 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,808 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,645 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,438 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,133 |
| Biggest Cities in China | 0 | - | 4.53 | 156,991 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,804 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,946 |
| Biggest Cities in India | 0 | - | 4.70 | 67,323 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,411 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,461 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,473 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,033 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,083 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,366 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,188 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,106 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,309 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,769 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,441 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,270 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,248 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,593 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,551 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,791 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,202 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,093 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,072 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,921 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,908 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,716 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,722 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,957 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,333 |
| Most Populous Islands | 0 | - | 4.79 | 121,969 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,200 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,401 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,896 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,961 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,822 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,970 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,606 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,818 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,371 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,841 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,131 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,923 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,447 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,990 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,591 |
