| Biggest Cities in the World | 0 | - | 4.92 | 789,238 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,461 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,414 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,505 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,667 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,602 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,329 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,391 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,225 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,405 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,944 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,061 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,637 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,561 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,044 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,472 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,213 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,333 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,211 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,690 |
| Largest City by Island | 0 | - | 4.87 | 70,944 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,234 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,401 |
| Biggest European Cities by Century | 0 | - | 4.98 | 133,903 |
| Megacities on a World Map | 0 | - | 4.98 | 250,290 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,596 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,714 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,750 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,181 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,617 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,471 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,990 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,734 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,087 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,507 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,331 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,219 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,716 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,482 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,040 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,275 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,456 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,659 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,380 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,414 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 84,989 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,055 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,341 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,162 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,079 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,281 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,045 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,608 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,128 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,364 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,025 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,139 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,608 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,620 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,745 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,308 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,440 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,966 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,513 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,091 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,868 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,470 |
| Countries with Megacities | 0 | - | 4.99 | 246,204 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,783 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,740 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,842 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,254 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,675 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,553 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,149 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,917 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,874 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,001 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,031 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,724 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,698 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,754 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,402 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,493 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,278 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,840 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,881 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,532 |
| Biggest Cities in History | 0 | - | 4.52 | 89,042 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,645 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,055 |
| Biggest City by Region | 0 | - | 4.50 | 35,968 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,867 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,155 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,201 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,886 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,233 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,145 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,256 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,387 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,867 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,357 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,793 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,029 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,893 |
| Random U.S. States on a Map | 0 | - | 4.96 | 620,768 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,699 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,042 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,714 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,806 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,686 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,898 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,765 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,265 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,053 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,089 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,167 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,760 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,292 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,472 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,253 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,829 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,441 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,965 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,541 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,650 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,456 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,937 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,068 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,988 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,169 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,711 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,540 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,811 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,180 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,304 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,158 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,182 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,505 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,487 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,719 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,101 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,466 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,994 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,962 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,392 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,615 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,871 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,857 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,175 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,291 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,684 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,837 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,424 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,131 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,189 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,660 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,722 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,585 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,145 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,378 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,731 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,719 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,456 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,981 |
| Biggest Cities in France | 0 | - | 4.69 | 221,805 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,670 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,599 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,400 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,063 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,512 |
| Biggest Cities in China | 0 | - | 4.53 | 156,835 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,706 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,931 |
| Biggest Cities in India | 0 | - | 4.70 | 67,283 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,264 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,829 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,622 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,504 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,548 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,661 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,339 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,028 |
| Most Populous Islands | 0 | - | 4.78 | 121,907 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,190 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,392 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,586 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,628 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,798 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,069 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,243 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,016 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,617 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,429 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,954 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,536 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,569 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,889 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,870 |
