| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,646 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,973 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,171 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,980 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,291 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,393 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,036 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,698 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,524 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,980 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,657 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,670 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,276 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 36,034 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,966 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,115 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,047 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,106 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,289 |
| Biggest Cities in the United States | 0 | - | 4.93 | 970,995 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,646 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,084 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,280 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,065 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,347 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,478 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,944 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,872 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,021 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,373 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,451 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,976 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,023 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,165 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,737 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,703 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,073 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,787 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,353 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,065 |
| Largest City by Island | 0 | - | 4.87 | 71,351 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,564 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,889 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,869 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,769 |
| Megacities on a World Map | 0 | - | 4.98 | 252,113 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,985 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,999 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,291 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,132 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,424 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,163 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,272 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,620 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,165 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,637 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,114 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,355 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,409 |
| Megacities on an Empty Map | 0 | - | 4.97 | 116,905 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,032 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,375 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,740 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,671 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,254 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,534 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,811 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,702 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,256 |
| Biggest Cities in California | 0 | - | 4.35 | 139,470 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,922 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,491 |
| Biggest Cities in Texas | 0 | - | 4.28 | 119,055 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,873 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,613 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,359 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,220 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,141 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,252 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,021 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,018 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,028 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,177 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,067 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,628 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,787 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,844 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,940 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,474 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,334 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,819 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,919 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,563 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,156 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,971 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,818 |
| Biggest City by Region | 0 | - | 4.50 | 36,052 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,984 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 38,121 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,177 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,091 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,273 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,052 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,309 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,724 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,374 |
| Biggest Cities in History | 0 | - | 4.52 | 89,325 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,202 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,381 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,902 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,266 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 115,719 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,286 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,630 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,896 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,290 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,999 |
| Biggest Cities in Japan | 0 | - | 4.69 | 82,725 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,162 |
| Biggest Cities in France | 0 | - | 4.69 | 222,962 |
| Biggest Cities in Spain | 0 | - | 4.64 | 170,339 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,771 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,602 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,425 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,684 |
| Biggest Cities in China | 0 | - | 4.53 | 157,626 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,121 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,049 |
| Biggest Cities in India | 0 | - | 4.70 | 67,481 |
| Biggest Cities in Italy | 0 | - | 4.77 | 240,106 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,508 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,112 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,789 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,215 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,885 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,204 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,744 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,264 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,764 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,875 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,085 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,400 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,474 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,928 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,497 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,998 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,001 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,712 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,503 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,376 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,021 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,493 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 22,297 |
| Cities of Ireland | 0 | - | 4.51 | 50,468 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,132 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,536 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,712 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,824 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,165 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,731 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,090 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,633 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,205 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,463 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,644 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,893 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,812 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,777 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,051 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,875 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,870 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,143 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,955 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,801 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,049 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,727 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,126 |
| Countries with Megacities | 0 | - | 4.99 | 248,635 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,993 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,464 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,371 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,415 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,927 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,935 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,580 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,586 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,986 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,925 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,372 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,234 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,055 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,768 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,703 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,253 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,039 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,037 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,304 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,778 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,292 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,677 |
