| Biggest Cities in the World | 0 | - | 4.91 | 798,768 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,940 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,543 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,046 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,336 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,836 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,808 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,512 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,609 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,893 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,606 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,041 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,478 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,625 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,325 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,341 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,151 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,530 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,396 |
| Largest City by Island | 0 | - | 4.87 | 71,865 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,981 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,946 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,503 |
| Megacities on a World Map | 0 | - | 4.98 | 254,509 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,411 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,155 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,342 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,921 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,647 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,361 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,630 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,701 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,229 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,981 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,074 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,408 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,969 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,990 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,063 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,724 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,550 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,224 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,906 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,527 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,342 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,792 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,332 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,295 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,285 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,071 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,791 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,835 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,231 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,568 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,086 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,980 |
| Biggest City by Region | 0 | - | 4.50 | 36,221 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,138 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,101 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 126,092 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,184 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,350 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,254 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,414 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,454 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,956 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,343 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,198 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,558 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,585 |
| Biggest Cities in History | 0 | - | 4.52 | 90,150 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,424 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,406 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,463 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,387 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,566 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 124,346 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 116,642 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,416 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,991 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,385 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,112 |
| Biggest English Cities by Century | 0 | - | 4.90 | 106,273 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,485 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,292 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,990 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 37,086 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 66,111 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,947 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,174 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,230 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,752 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,050 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,751 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,064 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,581 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,820 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,549 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,620 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,381 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,598 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,064 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,139 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,033 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,107 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,383 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,447 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,505 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,613 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,320 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,449 |
| Countries with Megacities | 0 | - | 4.99 | 263,348 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,289 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,238 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,582 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,276 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,475 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,941 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,927 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,758 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,314 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,121 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,583 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,263 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,655 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,651 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,470 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 63,693 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 73,100 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,987 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,821 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.45 | 87,816 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,547 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,970 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,832 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,018 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,393 |
| Cities in European Economic Areas on a Map | 0 | - | 4.70 | 17,632 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,184 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,308 |
| Biggest Cities in Japan | 0 | - | 4.69 | 83,089 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,413 |
| Biggest Cities in France | 0 | - | 4.70 | 223,985 |
| Biggest Cities in Spain | 0 | - | 4.63 | 171,143 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,994 |
| Biggest Cities in Poland | 0 | - | 4.63 | 53,897 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,246 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,904 |
| Biggest Cities in China | 0 | - | 4.53 | 158,587 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,858 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,213 |
| Biggest Cities in India | 0 | - | 4.64 | 67,744 |
| Biggest Cities in Italy | 0 | - | 4.77 | 241,079 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,246 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,453 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,893 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,718 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,791 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,900 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,390 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,535 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,079 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,818 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,195 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,249 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,838 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 53,135 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,328 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 102,126 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.16 | 107,344 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,513 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,575 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,700 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,497 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.28 | 73,458 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,683 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,773 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,616 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,604 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,442 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,886 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,151 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,313 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,885 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,592 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,326 |
| Biggest Axis-Controlled Cities | 0 | - | 4.44 | 48,875 |
| Cities in Squares on a Map - North America | 0 | - | 4.30 | 21,468 |
| Cities of Ireland | 0 | - | 4.51 | 50,659 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,187 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,208 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,076 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,985 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,273 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,195 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,743 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,249 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,539 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,242 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,958 |
