| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,713 |
| Biggest Cities in the World | 0 | - | 4.90 | 701,912 |
| Biggest City by Time Zone | 0 | - | 4.85 | 55,908 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,308 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,038 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,166 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,483 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,718 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,291 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 377,899 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 66,864 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,970 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,818 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,959 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,656 |
| Biggest Cities in the United States | 0 | - | 4.93 | 848,189 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 338,412 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 522,411 |
| Biggest Cities in Germany | 0 | - | 4.95 | 267,698 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,143 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,268 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,340 |
| Most Populous World Capitals | 0 | - | 4.94 | 162,073 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,272 |
| Megacities on a World Map | 0 | - | 4.98 | 223,598 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,843 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,649 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 91,647 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,260 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,527 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,801 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,140 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,628 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,087 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,400 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,718 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 42,980 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,664 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,542 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,490 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,441 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,550 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,060 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,574 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.98 | 309,485 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,079 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 89,405 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 75,366 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.30 | 83,771 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 89,415 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 71,151 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.22 | 66,742 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.23 | 61,089 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 68,418 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,344 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,717 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 104,985 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 70,812 |
| 500 Biggest US Cities | 0 | - | 4.88 | 100,971 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,727 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,076 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,200 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,922 |
| Countries with Megacities | 0 | - | 4.99 | 201,685 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,211 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,878 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 98,132 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,792 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 252,791 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,256 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 43,367 |
| Biggest City by Region | 0 | - | 4.50 | 34,044 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,992 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,556 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,533 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,650 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 77,935 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,399 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,407 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,618 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,054 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,379 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,225 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,525 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,232 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,177 |
| Biggest Cities in Europe | 0 | - | 4.75 | 487,289 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,348 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.31 | 22,343 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.99 | 56,780 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 137,421 |
| Biggest City by Island | 0 | - | 4.57 | 46,097 |
| Biggest Cities in History | 0 | - | 4.50 | 81,804 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,517 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,578 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 65,094 |
| Biggest Cities in Japan | 0 | - | 4.65 | 76,623 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,576 |
| Biggest Cities in France | 0 | - | 4.71 | 202,802 |
| Biggest Cities in Spain | 0 | - | 4.55 | 156,140 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 51,123 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 49,161 |
| Biggest Cities in Poland | 0 | - | 4.57 | 49,017 |
| Biggest Cities in Mexico | 0 | - | 4.50 | 34,905 |
| Biggest Cities in the UK | 0 | - | 4.46 | 95,078 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.75 | 66,556 |
| Biggest Cities in China | 0 | - | 4.55 | 141,513 |
| Cities of Ireland | 0 | - | 4.43 | 40,297 |
| Biggest Cities in Canada | 0 | - | 4.66 | 122,286 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 44,094 |
| Biggest Cities in India | 0 | - | 4.71 | 63,246 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 41,717 |
| Biggest Cities in Italy | 0 | - | 4.66 | 221,206 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 113,986 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 108,313 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 99,232 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 112,173 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 130,834 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 116,250 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,080 |
| Most Populous Countries by Year | 0 | - | 4.81 | 95,715 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,341 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 98,328 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 84,507 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 95,020 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 72,883 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,641 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,224 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,493 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,140 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,371 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,432 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,211 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,586 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 87,246 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,573 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 22,983 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 207,676 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 110,868 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 69,335 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,962 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 54,224 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 67,612 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 88,144 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 154,589 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 148,263 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 209,346 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 163,979 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,384 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 82,303 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,672 |
| Most Populous Country by First Two Letters | 0 | - | 4.71 | 67,633 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 147,929 |
| Demographics Multiple Choice | 0 | - | 4.66 | 40,190 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,556 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.87 | 15,683 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,567 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 61,065 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 154,675 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,969 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 83,001 |
| Flags to Largest Cities | 0 | - | 4.55 | 32,950 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 168,964 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,865 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,109 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,964 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 205,794 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 150,321 |
| Biggest Cities Starting With C | 0 | - | 4.08 | 98,031 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 79,943 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 116,318 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,774 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 163,471 |
| Most Populous Islands | 0 | - | 4.71 | 114,242 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,530 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,983 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 50,371 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.89 | 51,393 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,285 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,317 |
| Largest World Cities With Four Letters | 0 | - | 4.38 | 43,567 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.97 | 78,867 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 63,088 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,825 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,372 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,348 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,467 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,382 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,571 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 94,152 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 174,882 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 151,848 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,562 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 62,044 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.50 | 41,886 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,840 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,180 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 29,188 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,660 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 37,118 |
