| Biggest Cities in the World | 0 | - | 4.92 | 803,918 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,747 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,681 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,907 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,242 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,189 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,584 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,107 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,931 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,758 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,494 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,559 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,087 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,223 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,927 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,806 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,567 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,400 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,439 |
| Largest City by Island | 0 | - | 4.87 | 72,308 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,333 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,527 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,014 |
| Megacities on a World Map | 0 | - | 4.98 | 256,310 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,070 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,671 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,494 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,853 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,453 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,955 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,841 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,929 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,348 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,031 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,410 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,004 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,066 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,851 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,445 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,918 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,576 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,248 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,912 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,381 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,493 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,197 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,973 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,616 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,112 |
| Biggest City by Region | 0 | - | 4.50 | 36,348 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,283 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,178 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,878 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,840 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,084 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,281 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,418 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,488 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,101 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,300 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,892 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,773 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,528 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,632 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,710 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,422 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,213 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,700 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,769 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,799 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,418 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,436 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,111 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,260 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,785 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,733 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,745 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,593 |
| Biggest Cities in History | 0 | - | 4.52 | 90,479 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,785 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,562 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,639 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,152 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,126 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,896 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,840 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,027 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,456 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,390 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,733 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,898 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,692 |
| Countries with Megacities | 0 | - | 4.99 | 266,197 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,428 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,848 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,716 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,964 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,702 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,442 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,813 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,858 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,912 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,627 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,059 |
| 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 | 23,792 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,062 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,927 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,145 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,726 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,455 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,434 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,860 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,304 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,171 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,705 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,494 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,778 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,048 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,453 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,944 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,549 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,399 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,028 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,059 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,741 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,125 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,968 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,093 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,494 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,129 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,434 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,190 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,976 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,352 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,837 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,116 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,480 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,602 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,736 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,111 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,941 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,798 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,285 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,996 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,694 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,480 |
| Cities in Squares on a Map - North America | 0 | - | 4.31 | 21,553 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,319 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,324 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,617 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,405 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,691 |
| Biggest Cities in France | 0 | - | 4.70 | 224,991 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,902 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,202 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,198 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,680 |
| Biggest Cities in China | 0 | - | 4.53 | 159,572 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,341 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,404 |
| Biggest Cities in India | 0 | - | 4.64 | 67,987 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,070 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,435 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,662 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,751 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,800 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,861 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,636 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,619 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,842 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,499 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,597 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,745 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,423 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,101 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,440 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,770 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,627 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,477 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,727 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,404 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,463 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,902 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,362 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,520 |
| Most Populous Islands | 0 | - | 4.80 | 123,211 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,359 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,610 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,043 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,774 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,423 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,703 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,942 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,751 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,844 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,418 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,426 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,710 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,670 |
