| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,848 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,098 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,921 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,052 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,586 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,157 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,908 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,790 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,724 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,437 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,819 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,238 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,330 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,871 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,889 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,810 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,854 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,282 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 574,230 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,760 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,972 |
| Biggest Cities by Language | 0 | - | 4.96 | 243,112 |
| Largest City by Island | 0 | - | 4.87 | 71,200 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,495 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,739 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,610 |
| Megacities on a World Map | 0 | - | 4.98 | 251,556 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,919 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,059 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,122 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,419 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,608 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,385 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,727 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,716 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,995 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,374 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,148 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,217 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,770 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,642 |
| Megacities on an Empty Map | 0 | - | 4.96 | 110,644 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,428 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,323 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,026 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,257 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,428 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,604 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,194 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,819 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,829 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,065 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,595 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 106,612 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,139 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,184 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,439 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,256 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,172 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,402 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,480 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,590 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,527 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,854 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,991 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,743 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,656 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,250 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,179 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,768 |
| Countries with Megacities | 0 | - | 4.99 | 247,909 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,654 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,278 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,034 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,227 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,047 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,940 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,780 |
| Biggest City by Region | 0 | - | 4.50 | 36,028 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,943 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,719 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,599 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,060 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,248 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,976 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,991 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,285 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,617 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,252 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,105 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,396 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,101 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,595 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,882 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,466 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,847 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,578 |
| Biggest Cities in History | 0 | - | 4.52 | 89,236 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,171 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,238 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,239 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,915 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,637 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,089 |
| Biggest Cities in France | 0 | - | 4.69 | 222,723 |
| Biggest Cities in Spain | 0 | - | 4.63 | 170,117 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,717 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,803 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,536 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,035 |
| Biggest Cities in the UK | 0 | - | 4.47 | 104,312 |
| Biggest Cities in China | 0 | - | 4.53 | 157,318 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,407 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,990 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,011 |
| Biggest Cities in India | 0 | - | 4.70 | 67,402 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,833 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,678 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,125 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,768 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,093 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,582 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,149 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,556 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,502 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,240 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,581 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,140 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,566 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,755 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,380 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,890 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,676 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,989 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,695 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,486 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,169 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,093 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,298 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,094 |
| Cities of Ireland | 0 | - | 4.51 | 50,394 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,115 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,696 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,476 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,400 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,759 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,668 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,923 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,372 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,304 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,335 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,302 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,255 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,098 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,124 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,905 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,693 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,583 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,127 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,271 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,037 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,401 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,523 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,848 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,254 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,794 |
| Flags to Largest Cities | 0 | - | 4.54 | 50,909 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,015 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,855 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,862 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,857 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,998 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,866 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,737 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,935 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,602 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,745 |
| Most Populous Islands | 0 | - | 4.79 | 122,076 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,220 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,429 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,656 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,920 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,047 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,314 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,342 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,826 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,098 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,883 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,396 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,755 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,661 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,909 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,206 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,571 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,975 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 114,599 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,631 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,046 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,686 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,819 |
