| Cities of Ireland | 0 | - | 4.51 | 50,360 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,354 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,645 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,681 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,508 |
| Biggest Cities in the World | 0 | - | 4.92 | 791,129 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,551 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,602 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,355 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,491 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,183 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,642 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,691 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,948 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,900 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,747 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,054 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,736 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,792 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,165 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,978 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,286 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,584 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,595 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,681 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,117 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,228 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,803 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,770 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,634 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,304 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,373 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,528 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,409 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,688 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,797 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,884 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,612 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,589 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,661 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,947 |
| Largest City by Island | 0 | - | 4.87 | 71,107 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,431 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,631 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,246 |
| Megacities on a World Map | 0 | - | 4.98 | 251,223 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,433 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,852 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,936 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,900 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,914 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,846 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,241 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,265 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,134 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,462 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,608 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,968 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,094 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,048 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,323 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,565 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,145 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,578 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,863 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,148 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,055 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,999 |
| Biggest Cities in France | 0 | - | 4.69 | 222,544 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,992 |
| Biggest Cities in China | 0 | - | 4.53 | 157,143 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,644 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,568 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,375 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,500 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,977 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,921 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,739 |
| Biggest City by Region | 0 | - | 4.50 | 36,009 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,921 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,036 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,238 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,946 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,266 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,844 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,470 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,263 |
| Biggest Cities in History | 0 | - | 4.52 | 89,177 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,141 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,790 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,865 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,520 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,312 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,280 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,215 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,728 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,636 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,184 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,502 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,734 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,816 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,213 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,037 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,957 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,584 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,055 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,688 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,492 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,899 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,990 |
| Biggest Cities in India | 0 | - | 4.70 | 67,373 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,561 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,019 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,664 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,967 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,264 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,051 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,946 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,942 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,738 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,765 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,993 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,756 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,356 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,876 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,457 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,981 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,748 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,676 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,476 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,032 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,256 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,846 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,444 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,103 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,342 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,449 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,965 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,907 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,479 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,106 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,903 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,737 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,161 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,228 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,236 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,768 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,991 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,841 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,855 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,849 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,629 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,668 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,830 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,501 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,416 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,577 |
| Countries with Megacities | 0 | - | 4.99 | 247,477 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,424 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,172 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,832 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,093 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,747 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,892 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,561 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,954 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,806 |
| Biggest Cities in California | 0 | - | 4.35 | 139,263 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,815 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,430 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,214 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,112 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,597 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,667 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,059 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,187 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,993 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,304 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,233 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,367 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,005 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,552 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,783 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,196 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,459 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,054 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,487 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,675 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,346 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,389 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,665 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,627 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,337 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,273 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,246 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,525 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,538 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,086 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,138 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,401 |
