| Biggest Cities in the World | 0 | - | 4.92 | 804,050 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,764 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,706 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,946 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,261 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,258 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,598 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,120 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,977 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,778 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,505 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,572 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,095 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,232 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,976 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,974 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,592 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,412 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,457 |
| Largest City by Island | 0 | - | 4.87 | 72,318 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,340 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,535 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,026 |
| Megacities on a World Map | 0 | - | 4.98 | 256,389 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,136 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,680 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,507 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,881 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,474 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,010 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,852 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,942 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,355 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,039 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,414 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,010 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,071 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,859 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,453 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,926 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,588 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,252 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,915 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,406 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,503 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,221 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,982 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,621 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,116 |
| Biggest City by Region | 0 | - | 4.50 | 36,353 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,286 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,306 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,895 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,855 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,096 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,283 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,420 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,492 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,137 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,315 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,917 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,781 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,532 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,646 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,716 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,429 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,224 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,718 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,788 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,821 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,469 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,440 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,137 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,269 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,823 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,737 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,942 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,612 |
| Biggest Cities in History | 0 | - | 4.52 | 90,491 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,803 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,566 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,644 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,153 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,128 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,897 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,843 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,067 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,467 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,396 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,765 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,909 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,743 |
| Countries with Megacities | 0 | - | 4.99 | 266,291 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,468 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,876 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,760 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,986 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,711 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,445 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,839 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,025 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,957 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,633 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,060 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,976 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,796 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,070 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,934 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,155 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,733 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,464 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,436 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,883 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,317 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,191 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,732 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,502 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,791 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,069 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,469 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,955 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,553 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,410 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,035 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,062 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,794 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,132 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,970 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,094 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,498 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,139 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,467 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,211 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,979 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,357 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,843 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,133 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,498 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,622 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,750 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,122 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,945 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,807 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,290 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,001 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,698 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,487 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,556 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,325 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,327 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,624 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,411 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,700 |
| Biggest Cities in France | 0 | - | 4.70 | 225,019 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,914 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,206 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,206 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,687 |
| Biggest Cities in China | 0 | - | 4.53 | 159,614 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,354 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,408 |
| Biggest Cities in India | 0 | - | 4.64 | 67,993 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,090 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,444 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,668 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,754 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,804 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,863 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,640 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,623 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,846 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,510 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,617 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,757 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,433 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,108 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,447 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,781 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,640 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,487 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,738 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,409 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,468 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,903 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,371 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,524 |
| Most Populous Islands | 0 | - | 4.80 | 123,223 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,359 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,612 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,070 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,789 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,447 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,720 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,944 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,755 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,858 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,425 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,445 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,716 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,674 |
