| Biggest Cities in the World | 0 | - | 4.91 | 800,633 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,241 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,977 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,772 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,672 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,684 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,085 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,736 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,591 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,210 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,123 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,253 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,784 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,861 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,990 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,654 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,675 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,015 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,915 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,138 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,164 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,732 |
| Megacities on a World Map | 0 | - | 4.98 | 255,231 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,234 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,483 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,151 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,127 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,656 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,582 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,495 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,303 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,193 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,669 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,159 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,986 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,615 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,736 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,051 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,649 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,709 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,559 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,035 |
| Biggest City by Region | 0 | - | 4.50 | 36,273 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,185 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,507 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,504 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,690 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,222 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,376 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,349 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,881 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,005 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,407 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,456 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,453 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,391 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,397 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,088 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,280 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,476 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,940 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,904 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,445 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,423 |
| Biggest Cities in History | 0 | - | 4.52 | 90,280 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,012 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,475 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,524 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,496 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,758 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,546 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,146 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,563 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,248 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,078 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,090 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,842 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,569 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,702 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,468 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,198 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,259 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,096 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,636 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,627 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,836 |
| Countries with Megacities | 0 | - | 4.99 | 264,446 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,702 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,447 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,959 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,513 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,565 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,352 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,796 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,897 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,898 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,450 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,994 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,943 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,928 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,404 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,190 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,740 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,407 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,869 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,805 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,782 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,500 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,208 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,248 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,329 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,036 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,897 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,145 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,118 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,543 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,717 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,204 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,759 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,505 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,069 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,626 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,023 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,320 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,046 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,886 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,052 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,443 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,002 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,353 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,842 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,903 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,291 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,689 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,692 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,117 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,310 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,469 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,967 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,860 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,616 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,178 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,903 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,615 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,250 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,489 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,180 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,244 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,422 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,201 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,500 |
| Biggest Cities in France | 0 | - | 4.70 | 224,347 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,389 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,071 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,993 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,402 |
| Biggest Cities in China | 0 | - | 4.53 | 158,951 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,024 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,292 |
| Biggest Cities in India | 0 | - | 4.64 | 67,829 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,412 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,236 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,470 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,605 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,659 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,771 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,551 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,521 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,738 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,347 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,193 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,479 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,289 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,894 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,327 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,633 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,393 |
| African Island Countries | 0 | - | 4.96 | 101,828 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,155 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,322 |
| Islands by Country #1 | 0 | - | 4.88 | 175,449 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,280 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,335 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,867 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,204 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,401 |
| Most Populous Islands | 0 | - | 4.80 | 123,025 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,323 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,561 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,273 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,173 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,613 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,313 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,868 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,562 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,868 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,489 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,296 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,123 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,511 |
