| Biggest Cities in the United States | 0 | - | 4.93 | 966,261 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,711 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,089 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,615 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,612 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,809 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,813 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,940 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,455 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,493 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,505 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,545 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,034 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,141 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,721 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,650 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,492 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,081 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,390 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,815 |
| Largest City by Island | 0 | - | 4.87 | 71,014 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,367 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,511 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,651 |
| Megacities on a World Map | 0 | - | 4.98 | 250,865 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,776 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,839 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,669 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,118 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,927 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,979 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,272 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,554 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,477 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,279 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,525 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,108 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,412 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,543 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,757 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,234 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,427 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,250 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,700 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,744 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,446 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,512 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,890 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,894 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,683 |
| Biggest City by Region | 0 | - | 4.50 | 35,990 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,892 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,008 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,216 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,911 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,248 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,027 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,640 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,176 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,805 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,189 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,272 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,384 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,573 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,921 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,361 |
| Biggest Cities in History | 0 | - | 4.52 | 89,106 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,110 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,181 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,186 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,270 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,936 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,991 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,039 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,479 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,943 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,574 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,889 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,128 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,973 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,572 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,855 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,973 |
| 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 | 20,204 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,273 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,095 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,020 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,888 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,455 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,470 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,029 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,078 |
| 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 | 81,307 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,636 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,519 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,049 |
| Countries with Megacities | 0 | - | 4.99 | 246,618 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,970 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,835 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,406 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,774 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,297 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,469 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,582 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,626 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,743 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,765 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,839 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,320 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,738 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,576 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,616 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,745 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,420 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,090 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,791 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,850 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,838 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,452 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,557 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,218 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,215 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,307 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,628 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,849 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,217 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,691 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,607 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,876 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,162 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,543 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,980 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,746 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,465 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,231 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,414 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,764 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,774 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,508 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,010 |
| Biggest Cities in France | 0 | - | 4.69 | 221,983 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,777 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,637 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,432 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,130 |
| Biggest Cities in China | 0 | - | 4.53 | 156,971 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,792 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,942 |
| Biggest Cities in India | 0 | - | 4.70 | 67,317 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,397 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,763 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,965 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,174 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,651 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,083 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,123 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,276 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,880 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,367 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,550 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,271 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,639 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,919 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,907 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,715 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,324 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,718 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,955 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,327 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,421 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,260 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,236 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,578 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,542 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,779 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,183 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,085 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,053 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,870 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,945 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,804 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,963 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,814 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,357 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,123 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,444 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,986 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,415 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,092 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,568 |
| Most Populous Islands | 0 | - | 4.79 | 121,961 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,197 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,400 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,605 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,837 |
