| All 1M Cities by Proximity | 0 | - | 5.00 | 509,897 |
| Biggest Cities in the World | 0 | - | 4.89 | 680,611 |
| Biggest City by Time Zone | 0 | - | 4.84 | 53,714 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,928 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 167,968 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 91,178 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 94,973 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 63,905 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 70,544 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 368,164 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 64,507 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 42,091 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,210 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,076 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.96 | 54,605 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 105,291 |
| Biggest Cities in the United States | 0 | - | 4.92 | 810,157 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 321,337 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,791 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 108,555 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 302,025 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 96,471 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,331 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,697 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,567 |
| Most Populous World Capitals | 0 | - | 4.92 | 147,013 |
| Biggest European Cities by Century | 0 | - | 4.98 | 117,892 |
| Megacities on a World Map | 0 | - | 4.98 | 219,406 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,504 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 62,879 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 83,344 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 150,315 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,132 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,189 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,060 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,562 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,978 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,268 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 111,355 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 106,372 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 96,980 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 109,825 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 127,823 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,017 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,432 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,545 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,952 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 43,726 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.90 | 91,086 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,037 |
| 500 Biggest US Cities | 0 | - | 4.87 | 96,709 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,372 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 42,924 |
| Biggest City by Region | 0 | - | 4.49 | 33,482 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,128 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,255 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 75,023 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 46,869 |
| Biggest Cities in Europe | 0 | - | 4.75 | 459,649 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 50,636 |
| Biggest Cities in France - Extreme | 0 | - | 4.88 | 43,152 |
| Biggest Cities in Germany | 0 | - | 4.95 | 261,322 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,186 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,322 |
| Biggest Cities Starting With K | 0 | - | 4.29 | 78,371 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,038 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 115,580 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,535 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,396 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,023 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 63,936 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 135,836 |
| Biggest City by Island | 0 | - | 4.57 | 45,633 |
| Biggest Cities in History | 0 | - | 4.49 | 79,648 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 67,752 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 39,942 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.80 | 51,906 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,351 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,073 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 75,014 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 69,977 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,880 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 26,985 |
| Biggest City by Region #2 | 0 | - | 4.45 | 23,021 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,163 |
| Northernmost Major City by Country | 0 | - | 4.55 | 30,720 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,033 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,092 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,459 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,349 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.64 | 36,570 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,304,215 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,906 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,473 |
| Countries with Megacities | 0 | - | 4.99 | 195,219 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,852 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 97,051 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,966 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,925 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,661 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 98,636 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,079 |
| Biggest English Cities by Century | 0 | - | 4.89 | 99,126 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 151,339 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,417 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,757 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 192,626 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,501 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,532 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,789 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,379 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,570 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,559 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 50,115 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,204 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 62,765 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,614 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 89,691 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,105 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,818 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,095 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,636 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 70,388 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 61,338 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,673 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,622 |
| Biggest Cities in Japan | 0 | - | 4.66 | 74,988 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,032 |
| Biggest Cities in France | 0 | - | 4.76 | 198,017 |
| Biggest Cities in Spain | 0 | - | 4.50 | 152,528 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,787 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,761 |
| Biggest Cities in the UK | 0 | - | 4.46 | 92,792 |
| Biggest Cities in China | 0 | - | 4.64 | 137,337 |
| Cities of Ireland | 0 | - | 4.43 | 39,502 |
| Biggest Cities in Canada | 0 | - | 4.67 | 119,757 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,335 |
| Biggest Cities in India | 0 | - | 4.72 | 62,061 |
| Biggest Cities in Italy | 0 | - | 4.66 | 215,793 |
| Biggest U.S. Cities A-Z | 0 | - | 4.64 | 121,767 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,977 |
| Most Populous Country by First Two Letters | 0 | - | 4.75 | 66,557 |
| Demographics Multiple Choice | 0 | - | 4.66 | 39,609 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,352 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,850 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,622 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,780 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,590 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,589 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,128 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,067 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,221 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 28,052 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,395 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,382 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,229 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,117 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 63,707 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 37,978 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,577 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 82,957 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.36 | 69,421 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,749 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,391 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,823 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,581 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,836 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,249 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 204,249 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,007 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,280 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,751 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,393 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,639 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,413 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 143,003 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 139,390 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 203,787 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 159,699 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 156,278 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 80,072 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.90 | 84,280 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 145,096 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,555 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.37 | 29,880 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,613 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,571 |
| Cities on Interstate 90 on a Map | 0 | - | 4.40 | 25,107 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,680 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,317 |
| Most Populous Islands | 0 | - | 4.71 | 112,191 |
| Islands by Largest City #1 | 0 | - | 4.48 | 81,961 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,324 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 49,133 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,530 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 36,918 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,431 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,345 |
| Largest Nordic Cities on a Map | 0 | - | 4.73 | 22,942 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,247 |
