| Biggest Cities in the World | 0 | - | 4.92 | 803,758 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,725 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,655 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,855 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,218 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,097 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,564 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,089 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,863 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,738 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,478 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,545 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,076 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,201 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,883 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,632 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,531 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,387 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,422 |
| Largest City by Island | 0 | - | 4.87 | 72,286 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,326 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,508 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,003 |
| Megacities on a World Map | 0 | - | 4.98 | 256,246 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,959 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,662 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,480 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,822 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,434 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,891 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,743 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,728 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,833 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,911 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,341 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,024 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,397 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,493 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,997 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,445 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,382 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,709 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,881 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,936 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,241 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,901 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,352 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,468 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,178 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,861 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,824 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,063 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,050 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,288 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,867 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,756 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,056 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,962 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,614 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,108 |
| Biggest City by Region | 0 | - | 4.50 | 36,343 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,271 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,052 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,428 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,071 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,276 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,415 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,479 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,239 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,522 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,363 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,124 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,571 |
| Biggest Cities in History | 0 | - | 4.52 | 90,465 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,757 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,555 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,634 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,992 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,044 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,837 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,429 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,896 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,561 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,934 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,621 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,695 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,435 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,751 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,605 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,396 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,683 |
| Biggest Cities in France | 0 | - | 4.70 | 224,949 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,883 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,196 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,188 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,666 |
| Biggest Cities in China | 0 | - | 4.53 | 159,553 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,326 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,397 |
| Biggest Cities in India | 0 | - | 4.64 | 67,980 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,038 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,755 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,779 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,555 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,138 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,918 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,123 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,124 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,894 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,016 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,995 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,830 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,721 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,354 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,510 |
| Cities of Ireland | 0 | - | 4.51 | 50,838 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,242 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,441 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,420 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,831 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,681 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,848 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,573 |
| Countries with Megacities | 0 | - | 4.99 | 266,069 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,340 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,796 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,604 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,921 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,789 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,058 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,340 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,138 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,975 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,606 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,697 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,408 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,203 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,688 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,547 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,388 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,274 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,056 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,991 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,674 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,691 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,120 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,965 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,093 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,492 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,474 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,313 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,319 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,694 |
| Flags of the Countries that Start with C | 0 | - | 4.88 | 130,531 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 154,433 |
| Flags of the Countries that Start with B | 0 | - | 4.97 | 43,363 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 127,742 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,294 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,149 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,674 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,480 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,757 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,020 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,441 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,400 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,457 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,900 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,131 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,426 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,655 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,745 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,793 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,860 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,633 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,617 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,837 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,382 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,170 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,831 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,085 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,461 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,591 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,720 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,103 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,668 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,490 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,551 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,705 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.26 | 20,690 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,391 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,202 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,580 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,732 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,415 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,096 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,437 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,754 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,615 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,461 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,705 |
