| Biggest Cities in the World | 0 | - | 4.91 | 776,179 |
| Biggest City by Time Zone | 0 | - | 4.87 | 64,528 |
| Biggest City in Every Country | 0 | - | 4.98 | 95,197 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 196,944 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 106,453 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 116,722 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 76,316 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 81,821 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 76,249 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 46,723 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 67,672 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 54,133 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 65,034 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 125,318 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 408,100 |
| Biggest Cities in the United States | 0 | - | 4.93 | 948,158 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 359,825 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.89 | 117,085 |
| Biggest Cities by Language | 0 | - | 4.95 | 228,094 |
| Largest City by Island | 0 | - | 4.90 | 69,685 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 69,295 |
| Most Populous World Capitals | 0 | - | 4.94 | 172,909 |
| Biggest European Cities by Century | 0 | - | 4.98 | 127,314 |
| Megacities on a World Map | 0 | - | 4.98 | 238,438 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 565,102 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 65,830 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 72,287 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 107,785 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 164,809 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 165,112 |
| Biggest Cities in Asia | 0 | - | 4.94 | 107,017 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 48,729 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 335,897 |
| Megacities on an Empty Map | 0 | - | 4.96 | 95,554 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 49,027 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 67,834 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 72,300 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 218,165 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 132,765 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 111,541 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 57,830 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,226 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 44,890 |
| Biggest City by Region | 0 | - | 4.50 | 35,621 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,497 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,729 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 51,997 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 82,327 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 48,989 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 162,951 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 121,305 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 156,323 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 44,315 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 114,632 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 77,491 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.94 | 38,835 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.89 | 113,129 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 60,378 |
| Biggest Cities in Europe | 0 | - | 4.70 | 534,408 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 142,580 |
| Biggest Cities in History | 0 | - | 4.52 | 88,177 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 71,631 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.86 | 55,005 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 104,202 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.55 | 42,798 |
| Biggest Cities in France - Extreme | 0 | - | 4.86 | 54,417 |
| Largest Nordic Cities on a Map | 0 | - | 4.82 | 35,955 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 67,728 |
| Biggest Cities in Germany | 0 | - | 4.95 | 287,082 |
| Biggest Cities Starting With A | 0 | - | 4.61 | 122,104 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 114,617 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 107,065 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 120,408 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 140,564 |
| Biggest Cities Starting With P | 0 | - | 4.45 | 124,376 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 72,561 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,835 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,426 |
| Biggest Cities by Latitude | 0 | - | 4.78 | 27,323 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 16,980 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 167,846 |
| Countries with Megacities | 0 | - | 4.99 | 236,006 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 193,976 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 110,188 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 132,712 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 77,849 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 314,621 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 91,501 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 40,455 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 94,427 |
| All Cities in India with Population of 1 Million | 0 | - | 4.82 | 46,259 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,416,161 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 372,601 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.78 | 72,554 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,628 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.57 | 40,655 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 30,874 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,711 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 160,125 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 103,457 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 85,468 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 124,301 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 126,133 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 125,906 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 84,510 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 262,783 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 119,414 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 110,141 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 91,151 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 57,236 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 106,509 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.47 | 64,000 |
| Biggest English Cities by Century | 0 | - | 4.90 | 104,913 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 163,977 |
| Flags to Largest Cities | 0 | - | 4.54 | 37,433 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 107,921 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 92,339 |
| Biggest World Cities A-Z | 0 | - | 4.61 | 218,985 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 45,062 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,686 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,275 |
| Demographics Multiple Choice | 0 | - | 4.70 | 41,829 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 125,148 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,041 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,641 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 82,950 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,274 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,246 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 39,852 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 36,981 |
| Countries of Europe by Population | 0 | - | 4.98 | 173,904 |
| Most Populous Countries by Year | 0 | - | 4.83 | 107,336 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 94,381 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 126,330 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 105,000 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 110,722 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 88,021 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,330 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,222 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 47,897 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.41 | 50,719 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,405 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 42,542 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,118 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 174,638 |
| Biggest Cities in Japan | 0 | - | 4.68 | 81,741 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,372 |
| Biggest Cities in France | 0 | - | 4.70 | 219,119 |
| Biggest Cities in Spain | 0 | - | 4.63 | 167,606 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,039 |
| Biggest Cities in Poland | 0 | - | 4.61 | 52,797 |
| Biggest Cities in the UK | 0 | - | 4.47 | 102,838 |
| Biggest Cities in China | 0 | - | 4.52 | 154,491 |
| Biggest Cities in Canada | 0 | - | 4.56 | 130,442 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,535 |
| Biggest Cities in India | 0 | - | 4.70 | 66,686 |
| Biggest Cities in Italy | 0 | - | 4.74 | 236,819 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 100,160 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 105,476 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 84,327 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 79,391 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 32,889 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 66,777 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.26 | 72,569 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 80,778 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 137,694 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 219,278 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 133,023 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 74,459 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 82,690 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 65,876 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,092 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 95,087 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 162,633 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 167,370 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,253 |
| Boundary Waters | 0 | - | 4.92 | 87,382 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 34,330 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 94,076 |
| Most Populous Islands | 0 | - | 4.78 | 120,992 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,028 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,163 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 227,985 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 179,479 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 189,418 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 101,782 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,260 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 106,727 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 156,976 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.64 | 63,277 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 71,913 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.83 | 21,930 |
| Biggest Nordic Cities | 0 | - | 4.38 | 61,203 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,422 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,489 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,399 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,528 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,074 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 52,150 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 38,382 |
