| Biggest Cities in the World | 0 | - | 4.91 | 768,030 |
| Biggest City by Time Zone | 0 | - | 4.87 | 63,674 |
| Biggest City in Every Country | 0 | - | 4.98 | 93,557 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 194,635 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 105,120 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 114,883 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 75,439 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 81,027 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 75,278 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,390 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 67,000 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 49,777 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 64,150 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 405,249 |
| Biggest Cities in the United States | 0 | - | 4.94 | 937,136 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 357,754 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.88 | 116,458 |
| Biggest Cities by Language | 0 | - | 4.95 | 226,977 |
| Largest City by Island | 0 | - | 4.89 | 69,002 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.93 | 68,791 |
| Most Populous World Capitals | 0 | - | 4.94 | 172,052 |
| Biggest European Cities by Century | 0 | - | 4.98 | 126,675 |
| Megacities on a World Map | 0 | - | 4.98 | 236,594 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 560,719 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,352 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 71,526 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 103,444 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 163,642 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 164,250 |
| Biggest Cities in Asia | 0 | - | 4.94 | 106,183 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,343 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 333,000 |
| Megacities on an Empty Map | 0 | - | 4.96 | 94,899 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.94 | 48,473 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 67,518 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 71,958 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 216,655 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 131,591 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 110,457 |
| Second Biggest Cities by Country | 0 | - | 4.42 | 57,034 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,077 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 44,599 |
| Biggest City by Region | 0 | - | 4.50 | 35,456 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,298 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,583 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,861 |
| Two Largest Cities by First Two Letters | 0 | - | 4.55 | 81,981 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,820 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 161,958 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 120,253 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 155,391 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 43,398 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 113,430 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 76,875 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 37,965 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 111,685 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 59,661 |
| Biggest Cities in Europe | 0 | - | 4.70 | 529,757 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 141,815 |
| Biggest Cities in History | 0 | - | 4.52 | 87,574 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,377 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 54,667 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 99,337 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,585 |
| Biggest Cities in France - Extreme | 0 | - | 4.89 | 53,704 |
| Largest Nordic Cities on a Map | 0 | - | 4.83 | 35,450 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 67,480 |
| Biggest Cities in Germany | 0 | - | 4.95 | 285,195 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 121,349 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 113,864 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 106,234 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 119,549 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 139,709 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 123,624 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 72,396 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,771 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,314 |
| Biggest Cities by Latitude | 0 | - | 4.78 | 27,236 |
| Biggest Cities by Trait #2 | 0 | - | 4.41 | 15,033 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 165,780 |
| Countries with Megacities | 0 | - | 4.99 | 225,971 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 192,046 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 109,084 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,978 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 76,611 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 309,714 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 89,939 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,216 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 93,000 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 45,840 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,405,140 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 369,760 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 72,203 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,121 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 40,312 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,662 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,635 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 159,251 |
| Biggest Cities Starting With C | 0 | - | 4.10 | 102,954 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 84,966 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 123,622 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 125,249 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 124,852 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 83,797 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 261,299 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 118,388 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 109,576 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 90,362 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 56,591 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 105,760 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 63,703 |
| Biggest English Cities by Century | 0 | - | 4.90 | 104,551 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 162,879 |
| Flags to Largest Cities | 0 | - | 4.54 | 36,969 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 107,232 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 91,561 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 217,660 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 44,929 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,057 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,685 |
| Biggest European Cities by Letter | 0 | - | 4.63 | 124,715 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 64,885 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,515 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 82,211 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,062 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,083 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 39,675 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,651 |
| Countries of Europe by Population | 0 | - | 4.98 | 171,329 |
| Most Populous Countries by Year | 0 | - | 4.82 | 106,119 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 93,898 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 124,299 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 103,778 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 109,813 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 87,162 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,125 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 71,949 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 47,576 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.43 | 50,427 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,237 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 42,024 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 20,976 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 174,172 |
| Biggest Cities in Japan | 0 | - | 4.65 | 81,316 |
| Biggest Cities in Russia | 0 | - | 4.48 | 80,999 |
| Biggest Cities in France | 0 | - | 4.73 | 217,590 |
| Biggest Cities in Spain | 0 | - | 4.63 | 166,493 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 54,694 |
| Biggest Cities in Poland | 0 | - | 4.58 | 52,426 |
| Biggest Cities in the UK | 0 | - | 4.47 | 101,885 |
| Biggest Cities in China | 0 | - | 4.52 | 153,176 |
| Cities of Ireland | 0 | - | 4.50 | 49,420 |
| Biggest Cities in Canada | 0 | - | 4.56 | 129,686 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,300 |
| Biggest Cities in India | 0 | - | 4.70 | 66,339 |
| Biggest Cities in Italy | 0 | - | 4.75 | 235,176 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.35 | 99,426 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 104,886 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 83,914 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 79,001 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 32,604 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 66,549 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 72,276 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 80,491 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 137,061 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 218,120 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 132,229 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 73,956 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 82,132 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 65,469 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 71,653 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 94,428 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 161,843 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 166,402 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 82,817 |
| Boundary Waters | 0 | - | 4.92 | 87,050 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 34,021 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 93,308 |
| Most Populous Islands | 0 | - | 4.78 | 120,181 |
| Islands by Largest City #1 | 0 | - | 4.47 | 93,911 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,004 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 226,355 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 178,188 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 188,250 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 101,075 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,021 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,259 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 156,086 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 62,903 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 71,172 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.87 | 21,373 |
| Biggest Nordic Cities | 0 | - | 4.38 | 61,063 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,057 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 59,199 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,048 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,536 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.76 | 43,436 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.51 | 22,855 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 51,823 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 38,011 |
