| Biggest Cities in the World | 0 | - | 4.91 | 767,433 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 405,012 |
| Biggest Cities in the United States | 0 | - | 4.94 | 936,249 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 357,535 |
| Biggest City by Time Zone | 0 | - | 4.86 | 63,612 |
| Biggest City in Every Country | 0 | - | 4.98 | 93,429 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 194,442 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 105,026 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 114,761 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 75,368 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 80,970 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 75,202 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,379 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 66,954 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,755 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 64,088 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 560,339 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 116,410 |
| Biggest Cities by Language | 0 | - | 4.95 | 226,888 |
| Largest City by Island | 0 | - | 4.89 | 68,935 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.93 | 68,758 |
| Most Populous World Capitals | 0 | - | 4.94 | 171,976 |
| Biggest European Cities by Century | 0 | - | 4.98 | 126,626 |
| Megacities on a World Map | 0 | - | 4.98 | 236,480 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,319 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 71,450 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 103,342 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 163,538 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 164,193 |
| Biggest Cities in Asia | 0 | - | 4.94 | 106,128 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,310 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 332,752 |
| Megacities on an Empty Map | 0 | - | 4.96 | 94,845 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 48,428 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 67,491 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 71,927 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 216,536 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 131,513 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 110,370 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 155,302 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 43,332 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 113,372 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 76,812 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 37,893 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 111,547 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 59,602 |
| Biggest Cities in Europe | 0 | - | 4.74 | 529,390 |
| Second Biggest Cities by Country | 0 | - | 4.42 | 56,957 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,060 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,591 |
| Biggest City by Region | 0 | - | 4.50 | 35,443 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,280 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 54,648 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 99,295 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,567 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,847 |
| Two Largest Cities by First Two Letters | 0 | - | 4.55 | 81,952 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 53,626 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 35,411 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,809 |
| Biggest Cities in Germany | 0 | - | 4.95 | 285,050 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 89,784 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,202 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 92,865 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 45,802 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 141,737 |
| Biggest Cities in History | 0 | - | 4.52 | 87,528 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,350 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,569 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 67,450 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,642 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 121,284 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 113,809 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 106,173 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 119,488 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 139,643 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 123,567 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 161,859 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 120,151 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 72,380 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,766 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,310 |
| Biggest Cities by Latitude | 0 | - | 4.78 | 27,227 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 72,184 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,102 |
| Biggest Cities by Trait #2 | 0 | - | 4.41 | 15,027 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 40,287 |
| Biggest English Cities by Century | 0 | - | 4.90 | 104,520 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,404,421 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 369,591 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 165,627 |
| Countries with Megacities | 0 | - | 4.99 | 225,744 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,908 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,984 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,850 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 76,532 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 309,393 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 105,719 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 63,678 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 162,823 |
| Flags to Largest Cities | 0 | - | 4.54 | 36,936 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 107,173 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 91,509 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,621 |
| Biggest World Cities A-Z | 0 | - | 4.56 | 217,542 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 159,179 |
| Biggest Cities Starting With C | 0 | - | 4.10 | 102,912 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 84,923 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 123,570 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 125,194 |
| Biggest European Cities by Letter | 0 | - | 4.63 | 124,668 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 64,877 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,509 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 82,143 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,037 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,067 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 39,661 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,626 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 124,791 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 83,733 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 261,174 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 118,317 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 109,529 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 90,299 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 44,917 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 82,786 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 71,924 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 47,545 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 50,393 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 41,966 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 174,147 |
| Biggest Cities in Japan | 0 | - | 4.65 | 81,275 |
| Biggest Cities in Russia | 0 | - | 4.48 | 80,965 |
| Biggest Cities in France | 0 | - | 4.73 | 217,464 |
| Biggest Cities in Spain | 0 | - | 4.63 | 166,394 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 54,668 |
| Biggest Cities in Poland | 0 | - | 4.58 | 52,411 |
| Biggest Cities in the UK | 0 | - | 4.47 | 101,825 |
| Biggest Cities in China | 0 | - | 4.52 | 153,048 |
| Cities of Ireland | 0 | - | 4.50 | 49,399 |
| Biggest Cities in Canada | 0 | - | 4.56 | 129,615 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,273 |
| Biggest Cities in India | 0 | - | 4.70 | 66,311 |
| Biggest Cities in Italy | 0 | - | 4.75 | 235,027 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 137,017 |
| Countries of Europe by Population | 0 | - | 4.98 | 171,136 |
| Most Populous Countries by Year | 0 | - | 4.82 | 106,032 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 93,876 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 124,124 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 103,694 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 109,758 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 87,091 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,107 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,223 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 20,962 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.35 | 99,383 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 104,836 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 83,880 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 78,967 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 32,581 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 66,533 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 72,251 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 80,463 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 218,033 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 132,164 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,913 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 82,084 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 65,435 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,617 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,351 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 161,765 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 166,323 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,040 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,669 |
| Biggest Nordic Cities | 0 | - | 4.38 | 61,051 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,015 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 47,900 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 59,178 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,022 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.76 | 43,429 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.51 | 22,848 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 51,789 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 37,971 |
| All Cities in China with Population of 1 Million | 0 | - | 4.78 | 43,893 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 23,810 |
| Biggest Cities in Washington State | 0 | - | 4.42 | 35,223 |
| Biggest Cities in North Carolina | 0 | - | 4.68 | 34,315 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 226,218 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 178,094 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 188,130 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 101,022 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,218 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 156,036 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 71,101 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.87 | 21,332 |
| Largest Cities in Alexander's Empire | 0 | - | 4.57 | 39,587 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.27 | 110,467 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 62,659 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,526 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,505 |
