| Biggest Cities in Brazil | 0 | - | 4.57 | 53,412 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,404 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,558 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,135 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,768 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,247 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,108 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,408 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,492 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,326 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,540 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,440 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,996 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,996 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,910 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,897 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,302 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,418 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,830 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,745 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,688 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,222 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,678 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,498 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,935 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,595 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,413 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,687 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,186 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,365 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,268 |
| Biggest Cities in the United States | 0 | - | 4.94 | 986,592 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,931 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,036 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,997 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,265 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,774 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,522 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,424 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,137 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,885 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,561 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,540 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,611 |
| Largest City by Island | 0 | - | 4.87 | 72,427 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,410 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,662 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,118 |
| Megacities on a World Map | 0 | - | 4.98 | 256,786 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,746 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,639 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,322 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,730 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,623 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,506 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,406 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,967 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,996 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,970 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,161 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,227 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,302 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,961 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,992 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,174 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,119 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,760 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,478 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,176 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,701 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,493 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,744 |
| Biggest Cities in France | 0 | - | 4.70 | 225,246 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,113 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,271 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,264 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,803 |
| Biggest Cities in China | 0 | - | 4.53 | 159,818 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,462 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,443 |
| Biggest Cities in India | 0 | - | 4.64 | 68,048 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,317 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,460 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,522 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,076 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,644 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,146 |
| Biggest City by Region | 0 | - | 4.50 | 36,387 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,328 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,693 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,874 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,300 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,437 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,540 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,564 |
| Cities of Ireland | 0 | - | 4.51 | 50,901 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,144 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,256 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,440 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,239 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,820 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,283 |
| Biggest Cities in History | 0 | - | 4.52 | 90,571 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,961 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,577 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,079 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,163 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,606 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,579 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,158 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,996 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,530 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,690 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,657 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,375 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,166 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,122 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,150 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,942 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,550 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,065 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,711 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,338 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,054 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,736 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,921 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,568 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,369 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,364 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,590 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,936 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,964 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,162 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,177 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,695 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,136 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,913 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,535 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,896 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,744 |
| Biggest Cities in California | 0 | - | 4.35 | 140,377 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,376 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,908 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,536 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,397 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,828 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,965 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,672 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,285 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,688 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,379 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,133 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,303 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,037 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,382 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,088 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,803 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,917 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.26 | 20,739 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,562 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,516 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,988 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,103 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,773 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,785 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,484 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,323 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,808 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,827 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,055 |
| Countries with Megacities | 0 | - | 4.99 | 266,940 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,774 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,076 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,089 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,194 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,506 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,108 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,405 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,297 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,974 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,629 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,880 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,190 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,586 |
| Jewish Cities Quiz | 0 | - | 4.33 | 61,988 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,477 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,535 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,760 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,813 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,859 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,906 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,668 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,675 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,894 |
| Biggest Cities in New Jersey | 0 | - | 4.14 | 29,312 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,293 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,898 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,028 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,067 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,056 |
