| Biggest Cities in Asia | 0 | - | 4.95 | 117,373 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,224 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,643 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,108 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,239 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,662 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,752 |
| Biggest Cities in the World | 0 | - | 4.91 | 801,040 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,812 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,191 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,040 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,559 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,283 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,190 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,649 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,294 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,039 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,907 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,758 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,870 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,150 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,836 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,770 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,792 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,271 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,180 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,722 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,289 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,840 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,920 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,145 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,237 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,804 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,073 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,997 |
| Largest City by Island | 0 | - | 4.87 | 72,076 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,170 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,215 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,786 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,564 |
| Megacities on a World Map | 0 | - | 4.98 | 255,374 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,567 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,486 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,520 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,197 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,123 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,057 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,481 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,497 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,244 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,722 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,305 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,571 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,984 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,563 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,266 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,724 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,235 |
| Biggest Cities in China | 0 | - | 4.53 | 159,069 |
| Biggest Cities in India | 0 | - | 4.64 | 67,856 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,792 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,006 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,633 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,019 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,479 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,759 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,585 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,364 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,941 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,446 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,534 |
| Biggest Cities in France | 0 | - | 4.70 | 224,425 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,478 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,088 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,023 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,445 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,081 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,305 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,512 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,823 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,756 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,567 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,051 |
| Biggest City by Region | 0 | - | 4.50 | 36,287 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,197 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,227 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,382 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,362 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,870 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,457 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,220 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,414 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,783 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,513 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,645 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,028 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,607 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,059 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,893 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,448 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,253 |
| Cities of Ireland | 0 | - | 4.51 | 50,734 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,206 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,884 |
| Biggest Cities in History | 0 | - | 4.52 | 90,308 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,168 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,491 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,734 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,543 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,493 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,251 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,052 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,525 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,779 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,573 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,182 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,611 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,293 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,193 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,916 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,626 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,278 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,209 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,258 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,668 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.25 | 20,583 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,372 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,437 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,448 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,739 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 107,906 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,087 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,628 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,096 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,830 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,852 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,573 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,400 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,304 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,353 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,731 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,528 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,632 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 18,101 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,239 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,269 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,296 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,135 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,408 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,512 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,044 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,950 |
| Countries with Megacities | 0 | - | 4.99 | 264,672 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,781 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,496 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,050 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,571 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,983 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 117,577 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,475 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,001 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,862 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,686 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,947 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,967 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,429 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,211 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,776 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,444 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,730 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,145 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,057 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 17,816 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,081 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,957 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,236 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,178 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,582 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,756 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,236 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,872 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,411 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,262 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,495 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,619 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,678 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,787 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,566 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,530 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,756 |
| Biggest Cities in California | 0 | - | 4.35 | 140,056 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,215 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,760 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,440 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,304 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,712 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,838 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,439 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,218 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,488 |
