| Cities of China (With Some Help) | 0 | - | 4.91 | 31,796 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,637 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,231 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,450 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,785 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,045 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,380 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,060 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,948 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,541 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,357 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,502 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,475 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,157 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.98 | 118,974 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,993 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,034 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 32,850 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,542 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,527 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,185 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,837 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,866 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,298 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,815 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,010 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,662 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,561 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,761 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,247 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,449 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,497 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,685 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,538 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,191 |
| Biggest Cities in China | 0 | - | 4.53 | 159,976 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,659 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,731 |
| Largest City by Island | 0 | - | 4.87 | 72,486 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,451 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,738 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,181 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,122 |
| Megacities on a World Map | 0 | - | 4.98 | 257,111 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,087 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 582,259 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,792 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,732 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,750 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,498 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,279 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,955 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,550 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,732 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,548 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,596 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,485 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,034 |
| Biggest Cities in Europe | 0 | - | 4.73 | 549,344 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,268 |
| Biggest Cities in India | 0 | - | 4.64 | 68,084 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,315 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,328 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,993 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,211 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,035 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,169 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,793 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,506 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 68,383 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,860 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,782 |
| Biggest Cities in France | 0 | - | 4.70 | 225,414 |
| Biggest Cities in Spain | 0 | - | 4.64 | 172,250 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,299 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,308 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,878 |
| Biggest Cities in Canada | 0 | - | 4.55 | 133,555 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,479 |
| Biggest Cities in Italy | 0 | - | 4.78 | 242,497 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 65,000 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,139 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,665 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,167 |
| Biggest City by Region | 0 | - | 4.50 | 36,401 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,351 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,315 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,448 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,577 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,927 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,583 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,454 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,594 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 127,492 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,592 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,919 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,087 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 92,329 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 44,177 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 37,011 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,545 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,419 |
| Cities of Ireland | 0 | - | 4.51 | 50,928 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,267 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,912 |
| Biggest Cities in History | 0 | - | 4.52 | 90,629 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 79,084 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,618 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 65,050 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,717 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,691 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,414 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,195 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,170 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,190 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,995 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,612 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 144,126 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,777 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,392 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,080 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,751 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,636 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,407 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,379 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,739 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.26 | 20,785 |
| Biggest U.S. Cities A-Z | 0 | - | 4.68 | 139,626 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,045 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,062 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,828 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,165 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,186 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,703 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,141 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,376 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,925 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,558 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,485 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,559 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,928 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,854 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,763 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,154 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,631 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,572 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,475 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,266 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,226 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,776 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,656 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,281 |
| Countries with Megacities | 0 | - | 4.99 | 267,369 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,956 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,208 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,273 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,312 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,052 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,581 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,601 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,106 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,927 |
| Largest Cities once part of the Byzantine Empire | 0 | - | 4.83 | 21,788 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.31 | 40,993 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,845 |
| Biggest Cities Starting With C | 0 | - | 4.12 | 105,825 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,519 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,388 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,866 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,862 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,576 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,125 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 18,167 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,495 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,368 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,319 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,716 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,937 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,270 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,658 |
| Jewish Cities Quiz | 0 | - | 4.33 | 62,003 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,490 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,593 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,817 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,859 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,901 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,940 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.03 | 67,697 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,705 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.35 | 81,925 |
| Biggest Cities in California | 0 | - | 4.35 | 140,435 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,426 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,926 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,547 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,424 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,853 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,984 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,749 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,294 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,282 |
