| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,610 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,882 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,409 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,091 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,379 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,486 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,125 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,934 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 116,726 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,583 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,096 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,201 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,968 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,855 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,679 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,627 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,956 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,391 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,188 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,107 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,722 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,853 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,319 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,573 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,793 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,230 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,535 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,239 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,191 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,546 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,992 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,620 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,458 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 63,047 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,124 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,553 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,792 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,863 |
| Biggest Cities in Europe | 0 | - | 4.70 | 549,820 |
| Largest City by Island | 0 | - | 4.87 | 72,579 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,504 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,256 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,613 |
| Megacities on a World Map | 0 | - | 4.98 | 257,499 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,815 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,850 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,841 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,601 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,798 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,669 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,837 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,875 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,177 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,199 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,135 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,374 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,706 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,720 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,521 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,380 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,096 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,694 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,371 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,037 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,843 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,540 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,651 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,189 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,019 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,524 |
| Countries with Megacities | 0 | - | 4.99 | 267,916 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,181 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,351 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,505 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,455 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,033 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,095 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,213 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,679 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,181 |
| Biggest City by Region | 0 | - | 4.50 | 36,418 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,377 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,230 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,331 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,461 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,621 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,605 |
| Random African Capital to Country | 0 | - | 4.97 | 101,492 |
| Random African Country to Capital | 0 | - | 4.94 | 71,888 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,476 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,539 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,828 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,002 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,374 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,736 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,558 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,620 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,108 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,539 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,201 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,035 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,561 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,247 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 166,043 |
| Biggest Cities in History | 0 | - | 4.52 | 90,711 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,213 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,970 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,430 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,116 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,784 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,648 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,722 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,458 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,739 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,087 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,612 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,841 |
| Biggest Cities in France | 0 | - | 4.72 | 225,644 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,380 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,356 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,356 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,978 |
| Biggest Cities in China | 0 | - | 4.53 | 160,209 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,670 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,514 |
| Biggest Cities in India | 0 | - | 4.64 | 68,128 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,752 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,252 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,249 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,069 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,685 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,215 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,862 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,659 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,625 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,067 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,417 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,978 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,584 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,870 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,905 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,061 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,268 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,201 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,153 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,935 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,526 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,600 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,971 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,949 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,502 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,643 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,041 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,024 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,615 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,284 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,575 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,930 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,875 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,829 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,301 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,936 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,464 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,314 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,096 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,977 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,118 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,717 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,728 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,595 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,798 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,274 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,381 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,375 |
| Most Populous Islands | 0 | - | 4.80 | 123,446 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,404 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,677 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,024 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,548 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,903 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,216 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,495 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,064 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,831 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,121 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,924 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,936 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,450 |
| Cities of Ireland | 0 | - | 4.51 | 50,960 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,237 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,524 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 41,005 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,292 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,395 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,931 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,881 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,575 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,464 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,930 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,316 |
