| Biggest Cities in the World | 0 | - | 4.91 | 796,264 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,413 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,818 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,986 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,820 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,631 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,309 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,154 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,295 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,382 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,625 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,725 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,183 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,320 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,752 |
| Biggest Cities in the United States | 0 | - | 4.93 | 975,052 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,408 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,977 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,919 |
| Largest City by Island | 0 | - | 4.87 | 71,628 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,748 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,609 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,192 |
| Megacities on a World Map | 0 | - | 4.98 | 253,165 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,781 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,176 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,637 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,115 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,029 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,581 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,650 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,570 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,862 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,035 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,763 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,775 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,373 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,795 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,458 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,865 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,372 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,040 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,907 |
| Biggest City by Region | 0 | - | 4.50 | 36,113 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,044 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,984 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,018 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,076 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,144 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,317 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,152 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,200 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,526 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,426 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,009 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,354 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,604 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,832 |
| Biggest Cities in Europe | 0 | - | 4.72 | 545,159 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,936 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,570 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,472 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,219 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,884 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,586 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,009 |
| Biggest Cities in History | 0 | - | 4.52 | 89,982 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 75,006 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,344 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,376 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,082 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,427 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,165 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,484 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,071 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,839 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 72,996 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,027 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,751 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,530 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,508 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,555 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,914 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,123 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,263 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,454 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,487 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,872 |
| Countries with Megacities | 0 | - | 4.99 | 255,930 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,733 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,908 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,301 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,039 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,907 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,372 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,227 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.64 | 62,619 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,674 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,570 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,145 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,861 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,907 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,457 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,141 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,959 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,324 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,018 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,622 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,656 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,311 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,846 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,974 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,659 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,674 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,498 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,320 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,632 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,241 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,318 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,881 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,526 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,439 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 51,153 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,948 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,783 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,896 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,769 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,980 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,329 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,817 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,021 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,331 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,788 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,203 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,483 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,163 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,661 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,943 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,124 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,805 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,769 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,328 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,999 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,723 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,461 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,812 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,427 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,997 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,105 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,166 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,896 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,288 |
| Biggest Cities in France | 0 | - | 4.70 | 223,515 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,785 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,885 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,773 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,050 |
| Biggest Cities in China | 0 | - | 4.52 | 158,160 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,641 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,153 |
| Biggest Cities in India | 0 | - | 4.63 | 67,636 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,678 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,969 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,187 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,404 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,453 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,621 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,436 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,376 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,592 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,092 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,692 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,062 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,046 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,323 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,135 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,417 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,040 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,743 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,857 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,108 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,145 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,794 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,003 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,233 |
| Most Populous Islands | 0 | - | 4.80 | 122,757 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,271 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,494 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,351 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,442 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,969 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,590 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,755 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,283 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,000 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,107 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,636 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,285 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,538 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,227 |
