| Biggest Cities in the World | 0 | - | 4.91 | 789,078 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,421 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,374 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,442 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,619 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,534 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,298 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,364 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,176 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,483 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,378 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,926 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,038 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,621 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,536 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,230 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,864 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,430 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,208 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,329 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,168 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,662 |
| Largest City by Island | 0 | - | 4.87 | 70,930 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,183 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,375 |
| Biggest European Cities by Century | 0 | - | 4.98 | 128,674 |
| Megacities on a World Map | 0 | - | 4.98 | 250,097 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,705 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,727 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,546 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,448 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,969 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,675 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,057 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,500 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,307 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,201 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,708 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,468 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,031 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,116 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,239 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,349 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,430 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,110 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,591 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,603 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,633 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,280 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,431 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,373 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,410 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 84,987 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,050 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,340 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,162 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,077 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,276 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,453 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,829 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,955 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.86 | 55,600 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 123,990 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,728 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,925 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,126 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,913 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,848 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 46,990 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,346 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,958 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,849 |
| Countries with Megacities | 0 | - | 4.99 | 246,118 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,758 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,725 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,225 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,659 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,482 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,823 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,878 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,521 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,639 |
| Biggest City by Region | 0 | - | 4.50 | 35,960 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,860 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,197 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,877 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,230 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,247 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,020 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,710 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,649 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,653 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,024 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,739 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,386 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,475 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,078 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,142 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,736 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,269 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,456 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,215 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,140 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,261 |
| Biggest Cities in History | 0 | - | 4.52 | 89,031 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,037 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,151 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,177 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,063 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,980 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,538 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,777 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,138 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,362 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,850 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,262 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,761 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,006 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,873 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,279 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,129 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,492 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,475 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,704 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,079 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,978 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,945 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,685 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,786 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,663 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,884 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,752 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,244 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,861 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,043 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,242 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,823 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,438 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,166 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,961 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,291 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 165,518 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,646 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,454 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,931 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,835 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,119 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,658 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,580 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,164 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,142 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,697 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,508 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,162 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,449 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 192,374 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,011 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 299,664 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,626 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,066 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,846 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,209 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 171,958 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,616 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,506 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,676 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,417 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.41 | 51,187 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,883 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,863 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,718 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,862 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,695 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,369 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,724 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,897 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,701 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,447 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,967 |
| Biggest Cities in France | 0 | - | 4.69 | 221,772 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,644 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,592 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,678 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,394 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,915 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,049 |
| Biggest Cities in China | 0 | - | 4.53 | 156,806 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,278 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,693 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,927 |
| Biggest Cities in India | 0 | - | 4.70 | 67,274 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,242 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,829 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,586 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,483 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,535 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,643 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,326 |
