| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,025 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,991 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,620 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,464 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,903 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,119 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,881 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,802 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,364 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,205 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,483 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,456 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,669 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,769 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 58,615 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,367 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,840 |
| Biggest Cities in the United States | 0 | - | 4.94 | 975,490 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,529 |
| Largest City by Island | 0 | - | 4.87 | 71,665 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,782 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,666 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,239 |
| Megacities on a World Map | 0 | - | 4.98 | 253,350 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,998 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,206 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,702 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,212 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,070 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,750 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,895 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,635 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,890 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,102 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,803 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,789 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,394 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,889 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,507 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,964 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,395 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,045 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,921 |
| Biggest City by Region | 0 | - | 4.50 | 36,121 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,052 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,025 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,057 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,132 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,151 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,324 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,163 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,226 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,573 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,480 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,035 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,364 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,657 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,884 |
| Biggest Cities in Europe | 0 | - | 4.73 | 545,363 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,959 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,638 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,508 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,981 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,883 |
| Biggest Cities in History | 0 | - | 4.52 | 90,003 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 75,933 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,353 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,391 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,112 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,453 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,204 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,517 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,105 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,873 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,000 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,032 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,755 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,534 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,525 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,633 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,947 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,141 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,336 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,467 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,495 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,992 |
| Countries with Megacities | 0 | - | 4.99 | 259,185 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,861 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,975 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,145 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,977 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,385 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,239 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.69 | 64,250 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,133 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,693 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,162 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,867 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,912 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,496 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,158 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,976 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,356 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,047 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,645 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,670 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,343 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,240 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,883 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,000 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,717 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,723 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,550 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,408 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,671 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,259 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,366 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,921 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,551 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,445 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,176 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,957 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,815 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,909 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,773 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,984 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,338 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,830 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,154 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,384 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,801 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,214 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,496 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,208 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,700 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,968 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,153 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,821 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,779 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,348 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,014 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,742 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,474 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,858 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,437 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,014 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,113 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,193 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,919 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,304 |
| Biggest Cities in France | 0 | - | 4.70 | 223,594 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,844 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,896 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,788 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,065 |
| Biggest Cities in China | 0 | - | 4.52 | 158,223 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,677 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,163 |
| Biggest Cities in India | 0 | - | 4.63 | 67,659 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,745 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,002 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,205 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,423 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,480 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,637 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,445 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,393 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,607 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,111 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,728 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,098 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,075 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,432 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,154 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,434 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,076 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,183 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,779 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,901 |
| Flags to Languages | 0 | - | 4.95 | 173,399 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 718,987 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,117 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,161 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,796 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,018 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,251 |
| Most Populous Islands | 0 | - | 4.80 | 122,784 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,274 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,504 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,430 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,513 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,020 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,627 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,767 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,346 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,038 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,131 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,669 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,307 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,549 |
