| Cities of Ireland | 0 | - | 4.51 | 50,937 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,048 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,050 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,562 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,450 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,807 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,299 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,264 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,181 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,457 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,560 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,545 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,649 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,202 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,917 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,814 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,923 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,606 |
| Biggest Cities in the United States | 0 | - | 4.94 | 988,099 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,260 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,019 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,084 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,884 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,617 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,564 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,288 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,871 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,320 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,034 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,676 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,783 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,264 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,475 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,550 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,145 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,114 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,425 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,418 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,805 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,525 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,328 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,981 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,690 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,762 |
| Largest City by Island | 0 | - | 4.87 | 72,504 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,463 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,767 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,198 |
| Megacities on a World Map | 0 | - | 4.98 | 257,209 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 127,650 |
| 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 | 75,757 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,513 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,618 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 177,038 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,905 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,760 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,054 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,463 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,292 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,484 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,059 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.98 | 119,182 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,933 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,598 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,336 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,998 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,225 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,056 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,805 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,511 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,437 |
| Biggest Cities in France | 0 | - | 4.72 | 225,470 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,278 |
| Biggest Cities in China | 0 | - | 4.53 | 160,056 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,568 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,007 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,153 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,672 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,172 |
| Biggest City by Region | 0 | - | 4.50 | 36,405 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,354 |
| 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 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,585 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,342 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,946 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,502 |
| Biggest Cities in History | 0 | - | 4.52 | 90,645 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,118 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,407 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,091 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,088 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,378 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,757 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,622 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,183 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,019 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,548 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,658 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,927 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,422 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,720 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,706 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,385 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,556 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,793 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,308 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,313 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,579 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,488 |
| Biggest Cities in India | 0 | - | 4.64 | 68,090 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,194 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,201 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 110,014 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,632 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,151 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,799 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,495 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,570 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,930 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,465 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,602 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,033 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,175 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,191 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,708 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,145 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,403 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,927 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,568 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,935 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,875 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,775 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,269 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,652 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,589 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,484 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,275 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,262 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,082 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,735 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,073 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,105 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,635 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,606 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,110 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,425 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,205 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,996 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,868 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,841 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,530 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,408 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,881 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,866 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,343 |
| Countries with Megacities | 0 | - | 4.99 | 267,496 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,999 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,240 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,331 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,341 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,592 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,130 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,746 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,158 |
| Biggest U.S. Cities A-Z | 0 | - | 4.67 | 139,644 |
| Biggest Cities in California | 0 | - | 4.35 | 140,458 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,438 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,932 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,553 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,436 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,862 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,998 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,762 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,297 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,516 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,405 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,358 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,370 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,516 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,739 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,948 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,300 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,944 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,460 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,757 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,822 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,974 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,225 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,679 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,010 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 49,048 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,595 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,498 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.26 | 20,795 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,610 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,831 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,871 |
