| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,989 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,094 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,405 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,669 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,403 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,113 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,252 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,499 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,523 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,767 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,961 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,489 |
| Biggest Cities in India | 0 | - | 4.64 | 68,039 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,532 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,171 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,671 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,395 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,984 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,031 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,988 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,464 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,496 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,414 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,115 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,874 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,472 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,909 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,400 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,902 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,889 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,114 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,280 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,407 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,800 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,735 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,217 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,927 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,589 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,678 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,181 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,359 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,244 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,393 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,738 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,919 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,393 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,109 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,533 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,601 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,959 |
| Largest City by Island | 0 | - | 4.87 | 72,413 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,651 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,871 |
| Megacities on a World Map | 0 | - | 4.98 | 256,756 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,742 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,630 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,282 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,303 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,438 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,982 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,613 |
| Biggest Cities in History | 0 | - | 4.52 | 90,562 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,948 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,153 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,688 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,297 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,959 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,750 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,475 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,158 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,487 |
| Biggest Cities in China | 0 | - | 4.53 | 159,806 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,922 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,948 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,088 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,964 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,554 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,359 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,034 |
| Countries with Megacities | 0 | - | 4.99 | 266,898 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,748 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,054 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,065 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,179 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,036 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,916 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,142 |
| Hindu Countries | 0 | - | 4.87 | 50,561 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,065 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,644 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,166 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,143 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,576 |
| Biggest City by Region | 0 | - | 4.50 | 36,386 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,326 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,672 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,334 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,078 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,049 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,135 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,735 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,300 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,157 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,437 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,534 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,996 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,527 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,562 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,365 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,563 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,363 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,693 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,741 |
| Biggest Cities in France | 0 | - | 4.70 | 225,235 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,100 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,265 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,262 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,791 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,169 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,455 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,442 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,302 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,217 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,544 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,290 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,962 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,620 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,872 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,180 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,573 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,802 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,605 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,457 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,518 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,403 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,558 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,115 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,147 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,935 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,547 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,054 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,701 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,834 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,358 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,888 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,295 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,625 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,724 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,863 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,180 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,175 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,693 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,136 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,911 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,532 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 49,022 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,889 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,743 |
| Cities of Ireland | 0 | - | 4.51 | 50,900 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,255 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.26 | 20,735 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,436 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,237 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,759 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,850 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,498 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,174 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,500 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,846 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,731 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,611 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,881 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,329 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,957 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,638 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,830 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,820 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,012 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,951 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,776 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,380 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,529 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,787 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,127 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,288 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,364 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,087 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,797 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,724 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,375 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,165 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,986 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,093 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,763 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,779 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,480 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,316 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,804 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,212 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,913 |
