| Cities of China (With Some Help) | 0 | - | 4.91 | 31,751 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,501 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,015 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,387 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,586 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,176 |
| Biggest Cities in China | 0 | - | 4.53 | 159,716 |
| Biggest Cities in the World | 0 | - | 4.91 | 804,661 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,267 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,457 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,968 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,191 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,865 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,963 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,836 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,798 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,130 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,329 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,567 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,669 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,551 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,168 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,236 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,866 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,552 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,306 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,616 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 65,136 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,304 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,134 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,814 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,780 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,478 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,534 |
| Largest City by Island | 0 | - | 4.87 | 72,378 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,372 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,597 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,068 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,969 |
| Megacities on a World Map | 0 | - | 4.98 | 256,593 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,921 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,429 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,719 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,570 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,331 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,370 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,012 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,834 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,013 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,548 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,475 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,262 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,344 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,898 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,730 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,100 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,450 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,416 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 116,748 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,279 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,946 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,155 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,915 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,076 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,736 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,457 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,008 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,664 |
| Biggest Cities in France | 0 | - | 4.70 | 225,144 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,012 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,742 |
| Biggest Cities in India | 0 | - | 4.64 | 68,022 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,203 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,955 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,036 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,629 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,132 |
| Biggest City by Region | 0 | - | 4.50 | 36,370 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,308 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,578 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,294 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,429 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,509 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,911 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,551 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,988 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,561 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,841 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,072 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,000 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,150 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,985 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,516 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,386 |
| Cities of Ireland | 0 | - | 4.51 | 50,878 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,170 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,705 |
| Biggest Cities in History | 0 | - | 4.52 | 90,527 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,886 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,584 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,976 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,664 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,634 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,070 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,115 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,895 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,513 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,000 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,648 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,317 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,029 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,719 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,529 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,345 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,352 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,726 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,243 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,244 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,420 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,425 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,857 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,882 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,722 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,100 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,164 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,685 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,132 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,231 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,900 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,517 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,440 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,496 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,866 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,764 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,726 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,390 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,542 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,252 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,511 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,475 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,419 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,226 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,994 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,836 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,150 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,911 |
| Countries with Megacities | 0 | - | 4.99 | 266,636 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,619 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,985 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,922 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,087 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,030 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,253 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,564 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,077 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,903 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,767 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,362 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,159 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.26 | 20,711 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,979 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,717 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,749 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,461 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,280 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,772 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,812 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,457 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,101 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 18,067 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,705 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,548 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,366 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,250 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,863 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,564 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,838 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,122 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,522 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,976 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,465 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,139 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,490 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,715 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,792 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,841 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,892 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,656 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,655 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,873 |
| Biggest Cities in California | 0 | - | 4.35 | 140,326 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,352 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,884 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,517 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,388 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,810 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,946 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,614 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,274 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,649 |
