| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,191 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,656 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,699 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,401 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,925 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,869 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,815 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,801 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,206 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,533 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,259 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,371 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,515 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,421 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,726 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,898 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,620 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,575 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,561 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,725 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,774 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,846 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,419 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,466 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,501 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,001 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,114 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,693 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,621 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,456 |
| Biggest Cities in California | 0 | - | 4.35 | 139,177 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,748 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,391 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,185 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,068 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,577 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,039 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,409 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,203 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,920 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,482 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,326 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,772 |
| Largest City by Island | 0 | - | 4.87 | 70,988 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,340 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,464 |
| Biggest European Cities by Century | 0 | - | 4.98 | 141,536 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,630 |
| Megacities on a World Map | 0 | - | 4.98 | 250,749 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 124,130 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,750 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,803 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,785 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,585 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,094 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,085 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,916 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,857 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,432 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,222 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,929 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,950 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,025 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,270 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,107 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,007 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,548 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,708 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,407 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,750 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,883 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,394 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,048 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,279 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,753 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,828 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,567 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,510 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,077 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,183 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,676 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,595 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,160 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,737 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,452 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,219 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,087 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,014 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,854 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,913 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,906 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,889 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,461 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,863 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,889 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,672 |
| Biggest City by Region | 0 | - | 4.50 | 35,983 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,882 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,974 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,965 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,004 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,215 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,900 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,245 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,321 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,199 |
| Biggest Cities in History | 0 | - | 4.52 | 89,084 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,100 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,303 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,845 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,168 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,936 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,199 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,401 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,749 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,176 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,752 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,491 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,003 |
| Biggest Cities in France | 0 | - | 4.69 | 221,927 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,740 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,620 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,426 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,101 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,529 |
| Biggest Cities in China | 0 | - | 4.53 | 156,904 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,768 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,940 |
| Biggest Cities in India | 0 | - | 4.70 | 67,304 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,354 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,742 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,451 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,921 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,551 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,858 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,097 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,947 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,710 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,704 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,944 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,309 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,382 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,278 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,843 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,440 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,971 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,602 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,659 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,462 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,188 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,747 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,391 |
| Cities of Ireland | 0 | - | 4.51 | 50,311 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,085 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,246 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,353 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,279 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,876 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,219 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,415 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,528 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,887 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,517 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,843 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,739 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,720 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,964 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,786 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,837 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,705 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,555 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,599 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,712 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,396 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,968 |
| Countries with Megacities | 0 | - | 4.99 | 246,458 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,884 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,781 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,347 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,738 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,585 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,868 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,547 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,547 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,929 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,741 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,062 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,769 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,878 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,797 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,126 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,804 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,435 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,533 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,107 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,238 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,834 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,346 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,519 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,246 |
