| Neutral European Countries of WWII | 0 | - | 4.91 | 160,917 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,589 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,948 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,407 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,878 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,323 |
| Biggest Cities in the United States | 0 | - | 4.93 | 971,730 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,803 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,139 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,380 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,264 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,438 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,696 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,998 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,930 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,089 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,415 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,495 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,030 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,069 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,258 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,912 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,401 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,468 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,376 |
| Largest City by Island | 0 | - | 4.87 | 71,388 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,952 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,790 |
| Megacities on a World Map | 0 | - | 4.98 | 252,294 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,024 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,351 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,570 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,718 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,039 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,645 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,129 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,722 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,530 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,319 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,562 |
| Biggest Cities in History | 0 | - | 4.52 | 89,367 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,215 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,689 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,275 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,208 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,113 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,377 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,308 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,707 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,785 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,770 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,009 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,245 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,060 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,824 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,869 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,095 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,183 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,285 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,915 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,623 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,200 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,988 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,835 |
| Biggest City by Region | 0 | - | 4.50 | 36,065 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,996 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,206 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,102 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,283 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,070 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,320 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,076 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,707 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,042 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,793 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,324 |
| Vietnam War Countries | 0 | - | 4.83 | 93,883 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,787 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,398 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,899 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,278 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,391 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,841 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,242 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,920 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,246 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,785 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,298 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,769 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,440 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,712 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,499 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,939 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,580 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,002 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,052 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,717 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,511 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,254 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,156 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,400 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,064 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,300 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,586 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,761 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,269 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,744 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,799 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,270 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,516 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,397 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,661 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,907 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,578 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,832 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,820 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,716 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,269 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,784 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,721 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,878 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,197 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,977 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,822 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,090 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,774 |
| Countries of the German Empire | 0 | - | 4.51 | 37,785 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,245 |
| Countries with Megacities | 0 | - | 4.99 | 248,874 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,100 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,529 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,457 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,479 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,969 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,895 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,638 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,376 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,940 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,661 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,921 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 176,037 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,752 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,181 |
| Biggest Cities in France | 0 | - | 4.70 | 223,068 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,429 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,792 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,641 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,471 |
| Biggest Cities in China | 0 | - | 4.52 | 157,723 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,415 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,065 |
| Biggest Cities in India | 0 | - | 4.70 | 67,508 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,225 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,965 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,412 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,264 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,240 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,869 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,773 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,312 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,073 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,074 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,327 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,838 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,344 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,713 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,891 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,618 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,728 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,504 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,143 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,038 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,052 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,379 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,504 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,900 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,114 |
| Cities of Ireland | 0 | - | 4.51 | 50,485 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,139 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,749 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,754 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,243 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,288 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,499 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,323 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,253 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,474 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,052 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,975 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,956 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,654 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,523 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,880 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,756 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,010 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,528 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,199 |
| Countries of the Italian Empire | 0 | - | 4.21 | 27,621 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,492 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,568 |
