| Biggest Cities in the World | 0 | - | 4.91 | 801,029 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,292 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,035 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,905 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,755 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,860 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,145 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,766 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,785 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,268 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,179 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,287 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,840 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,913 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,143 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,212 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,798 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,068 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,992 |
| Largest City by Island | 0 | - | 4.87 | 72,074 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,169 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,211 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,782 |
| Megacities on a World Map | 0 | - | 4.98 | 255,369 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,750 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,471 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,517 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,195 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,241 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 168,718 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,800 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,981 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,559 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,369 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,223 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,723 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,190 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,554 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,237 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,189 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,659 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,641 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,004 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,631 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,833 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,106 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,717 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,561 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,564 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,107 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,049 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,473 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,497 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,754 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,566 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,051 |
| Biggest City by Region | 0 | - | 4.50 | 36,286 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,197 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,304 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,565 |
| 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 | 83,361 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,457 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,034 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,643 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,065 |
| Biggest Cities in Europe | 0 | - | 4.73 | 547,263 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 41,282 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,789 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 164,871 |
| Biggest Cities in History | 0 | - | 4.52 | 90,307 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,162 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,490 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,540 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,492 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,524 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,779 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,572 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,181 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,609 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,292 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,476 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,585 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,364 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 44,278 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,205 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,935 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,437 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,447 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,726 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,904 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,087 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,823 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,095 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,829 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,851 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,573 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,754 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,730 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,528 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,632 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,238 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,267 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,407 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,188 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,520 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,525 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.67 | 75,593 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,475 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,038 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,947 |
| Countries with Megacities | 0 | - | 4.99 | 264,665 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,775 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,495 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,043 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,568 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,644 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,001 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,946 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,966 |
| 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 | 126,775 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,443 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,730 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,780 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,513 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,143 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,192 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,028 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,915 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 90,586 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,626 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,057 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,893 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,057 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,448 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 17,815 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,258 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,446 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,232 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,533 |
| Biggest Cities in France | 0 | - | 4.70 | 224,422 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,477 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,088 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,022 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,444 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,019 |
| Biggest Cities in China | 0 | - | 4.53 | 159,067 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,075 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,305 |
| Biggest Cities in India | 0 | - | 4.64 | 67,852 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,507 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,371 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,505 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,078 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,954 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,231 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,175 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,579 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,755 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,235 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,872 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,303 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,352 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,870 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,219 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,413 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,259 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,494 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,619 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,676 |
| 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 | 73,529 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,754 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,486 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,885 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,706 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,747 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,166 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,343 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,502 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,991 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,628 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,397 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,933 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,495 |
| Cities of Ireland | 0 | - | 4.51 | 50,734 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,206 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,295 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,134 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,248 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,517 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,307 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,926 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,340 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,647 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,418 |
