| Biggest Cities in the World | 0 | - | 4.91 | 806,349 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,024 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,093 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,890 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,642 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,569 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,311 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,874 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,327 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,933 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,036 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,679 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,787 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,265 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,481 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,569 |
| Biggest Cities in the United States | 0 | - | 4.94 | 988,178 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,266 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,700 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,765 |
| Largest City by Island | 0 | - | 4.87 | 72,506 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,463 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,773 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,203 |
| Megacities on a World Map | 0 | - | 4.98 | 257,230 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,440 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,806 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,766 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,633 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,769 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,076 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,061 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,269 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,460 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,298 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,561 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,338 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,999 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,929 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,820 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,618 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,347 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,157 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,673 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,172 |
| Biggest City by Region | 0 | - | 4.50 | 36,406 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,354 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,149 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,119 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,437 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,319 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,455 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,584 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,813 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,528 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,335 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,987 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,585 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,079 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,112 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,484 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,563 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,663 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,519 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,459 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,808 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,082 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,951 |
| Biggest Cities in History | 0 | - | 4.52 | 90,651 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,124 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,624 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,721 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,196 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,204 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,016 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,632 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,155 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,805 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,191 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,146 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,928 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,938 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,552 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,652 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,487 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,214 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,063 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,356 |
| Countries with Megacities | 0 | - | 4.99 | 267,519 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,009 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,248 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,343 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,350 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,808 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,516 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,453 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,144 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,750 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,053 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,112 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,996 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,871 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,843 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,530 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,410 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,883 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,868 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,175 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,008 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,412 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,878 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,654 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,591 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,270 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,517 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,409 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,380 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,744 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,952 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,304 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,682 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,505 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,598 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,595 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,187 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,094 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,382 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,184 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,020 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,130 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,549 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,226 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,377 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,521 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,040 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,398 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,946 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,468 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,764 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,825 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,979 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,228 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,012 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,936 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,409 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,089 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,759 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,662 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,595 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,423 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,387 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,041 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,557 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,795 |
| Biggest Cities in France | 0 | - | 4.72 | 225,478 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,284 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,310 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,316 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,909 |
| Biggest Cities in China | 0 | - | 4.53 | 160,074 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,585 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,488 |
| Biggest Cities in India | 0 | - | 4.64 | 68,093 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,577 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,612 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,834 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,873 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,916 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,949 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,702 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,712 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,933 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,647 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,923 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,955 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,573 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,244 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,551 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,896 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,810 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,745 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,030 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,497 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,571 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,930 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,470 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,605 |
| Most Populous Islands | 0 | - | 4.80 | 123,391 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,394 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,664 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,756 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,301 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,128 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,996 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,002 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,935 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,038 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,525 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,628 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,850 |
