| Biggest Cities in the World | 0 | - | 4.91 | 806,203 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,008 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,057 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,866 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,590 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,548 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,246 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,856 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,309 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,870 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,024 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,670 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,776 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,255 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,463 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,544 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,933 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,226 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,679 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,750 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,455 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,751 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,193 |
| Megacities on a World Map | 0 | - | 4.98 | 257,170 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,345 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,798 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,750 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,598 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,748 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,008 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,046 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,247 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,453 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,281 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,550 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,333 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,996 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,899 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,801 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,586 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,146 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,670 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,171 |
| Biggest City by Region | 0 | - | 4.50 | 36,404 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,353 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,128 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,101 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,406 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,317 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,452 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,582 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,783 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,512 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,308 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,967 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,584 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,057 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,087 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,419 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,559 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,632 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,501 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,410 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,803 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,957 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,932 |
| Biggest Cities in History | 0 | - | 4.52 | 90,638 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,107 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,619 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,718 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,185 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,198 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,009 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,625 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,144 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,792 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,190 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,144 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,927 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,932 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,536 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,643 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,482 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,179 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,052 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,311 |
| Countries with Megacities | 0 | - | 4.99 | 267,432 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,981 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,225 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,307 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,328 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,800 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,509 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,416 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,934 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,693 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,044 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,109 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,995 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,864 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,838 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,524 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,405 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,875 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,170 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,003 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,393 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,865 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,645 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,580 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,243 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,505 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,391 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,347 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,729 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,947 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,284 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,669 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,500 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,595 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,588 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,177 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,090 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,356 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,181 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,015 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,128 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,547 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,216 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,326 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,499 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,037 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,394 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,941 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,448 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,746 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,802 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,952 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,218 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,009 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,929 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,403 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,082 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,753 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,651 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,594 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,417 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,384 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,009 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,543 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,788 |
| Biggest Cities in France | 0 | - | 4.70 | 225,446 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,266 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,302 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,310 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,898 |
| Biggest Cities in China | 0 | - | 4.53 | 160,012 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,568 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,483 |
| Biggest Cities in India | 0 | - | 4.64 | 68,087 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,535 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,604 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,826 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,866 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,910 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,945 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,700 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,709 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,929 |
| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 139,635 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,897 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,945 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,562 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,229 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,541 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,887 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,805 |
| African Island Countries | 0 | - | 4.96 | 102,612 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,726 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,014 |
| Islands by Country #1 | 0 | - | 4.90 | 176,423 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,492 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,564 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,928 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,460 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,597 |
| Most Populous Islands | 0 | - | 4.80 | 123,379 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,391 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,658 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,719 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,277 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,088 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,977 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,996 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,923 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,957 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,025 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,512 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,609 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,838 |
