| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,681 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,432 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,123 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,514 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,228 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,305 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,470 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,300 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,681 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,323 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,532 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,514 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,467 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,594 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,718 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,688 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,356 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,419 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,446 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,964 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,072 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,655 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,590 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,181 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,143 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,376 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,155 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,724 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,618 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,639 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,337 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,460 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,247 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,718 |
| Largest City by Island | 0 | - | 4.87 | 70,961 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,272 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,421 |
| Biggest European Cities by Century | 0 | - | 4.98 | 137,976 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,620 |
| Megacities on a World Map | 0 | - | 4.98 | 250,496 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,062 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,730 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,770 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,757 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,528 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,007 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,033 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,829 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,660 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,364 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,169 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,921 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,906 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,012 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,261 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,548 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,493 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,047 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,922 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,859 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,075 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,994 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,823 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,726 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,447 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,848 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,882 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,651 |
| Biggest City by Region | 0 | - | 4.50 | 35,976 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,874 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,947 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,997 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,205 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,890 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,235 |
| Biggest Cities in California | 0 | - | 4.35 | 139,158 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,741 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,372 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,180 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,066 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,562 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,567 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,034 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,286 |
| Biggest Cities in History | 0 | - | 4.52 | 89,056 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,076 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,295 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,709 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,839 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,433 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,149 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,206 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,159 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,666 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,588 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,149 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,382 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,741 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,157 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,727 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,472 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,986 |
| Biggest Cities in France | 0 | - | 4.69 | 221,837 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,697 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,607 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,405 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,069 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,515 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,963 |
| Biggest Cities in China | 0 | - | 4.53 | 156,852 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,935 |
| Biggest Cities in India | 0 | - | 4.70 | 67,286 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,296 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,722 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,418 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,890 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,471 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,819 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,056 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,917 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,896 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,879 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,701 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,691 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,931 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,293 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,168 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,263 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,835 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,432 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,968 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,562 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,654 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,457 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,960 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,573 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,176 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,724 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,363 |
| Cities of Ireland | 0 | - | 4.51 | 50,289 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,082 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,225 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,339 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,089 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,003 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,546 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,702 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,402 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,744 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,880 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,392 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,044 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,273 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,752 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,819 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,222 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,649,516 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,761 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,231 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,491 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,855 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,509 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,835 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,857 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,191 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,729 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,714 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,779 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,834 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,655 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,526 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,574 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,682 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,366 |
| Vietnam War Countries | 0 | - | 4.83 | 93,542 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,896 |
| Countries with Megacities | 0 | - | 4.99 | 246,279 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,819 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,750 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,276 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,689 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,557 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,865 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,544 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,924 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.89 | 98,669 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.86 | 113,364 |
| Countries that Start with A - Shape Quiz | 0 | - | 4.92 | 33,632 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.94 | 82,212 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.83 | 81,725 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,192 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 152,775 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 41,610 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,513 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,043 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,740 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,761 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,734 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,083 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,775 |
