| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,230 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,871 |
| Biggest City by Time Zone | 0 | - | 4.88 | 66,699 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,756 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 222,074 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,934 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,179 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,544 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,563 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,824 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,649 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,087 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,208 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,781 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,738 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,594 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,307 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,962 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,524 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,583 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,905 |
| Largest City by Island | 0 | - | 4.87 | 71,084 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,416 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,600 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,056 |
| Megacities on a World Map | 0 | - | 4.98 | 251,119 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,827 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,911 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,226 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,869 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,218 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,092 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,462 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,588 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,561 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,327 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,553 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,136 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,573 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,660 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,864 |
| US States and State Capitals | 0 | - | 4.99 | 158,744 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,335 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,500 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,367 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,777 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,843 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,567 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,568 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,292 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,670 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 124,362 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,940 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,930 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,864 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,984 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,420 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,947 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,897 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,339 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,420 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,959 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,132 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,081 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,431 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,956 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,918 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,627 |
| Biggest Cities in History | 0 | - | 4.52 | 89,161 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,725 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,134 |
| Biggest City by Region | 0 | - | 4.50 | 36,006 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,914 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,203 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,027 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,229 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,936 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,264 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,207 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,292 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,542 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,001 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,642 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,947 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,237 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,027 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,091 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,134 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,043 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,966 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,749 |
| Biggest Cities in California | 0 | - | 4.35 | 139,245 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,803 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,427 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,210 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,083 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,587 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,656 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,053 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,500 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,344 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,869 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,492 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,980 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,721 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,675 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,469 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,029 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,240 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,822 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,320 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,430 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,437 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,189 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,688 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,805 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,480 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,701 |
| Countries with Megacities | 0 | - | 4.99 | 247,314 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,317 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,110 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,100 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,741 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,039 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,247 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,320 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,715 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,774 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,861 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,498 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,287 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,266 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,720 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,762 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,633 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,887 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,179 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,481 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,801 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,944 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,824 |
| Biggest Cities in Japan | 0 | - | 4.68 | 82,552 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,043 |
| Biggest Cities in France | 0 | - | 4.69 | 222,462 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,942 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,672 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,478 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,560 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,200 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,574 |
| Biggest Cities in China | 0 | - | 4.53 | 157,108 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,877 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,980 |
| Biggest Cities in India | 0 | - | 4.70 | 67,357 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,587 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,795 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,126 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,016 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,584 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,850 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,724 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,432 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,768 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,892 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,410 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,061 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,296 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,774 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,848 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,827 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,620 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,656 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,813 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,487 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,670 |
| Which City in Canada? | 0 | - | 4.82 | 56,718 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,452 |
| U.S. State Flags | 0 | - | 4.89 | 167,301 |
| Hawaiian Islands | 0 | - | 4.83 | 42,444 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,099 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,154 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,906 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,074 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,960 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,526 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,679 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,349 |
| Jewish Cities Quiz | 0 | - | 4.34 | 61,661 |
| Biggest Axis-Controlled Cities | 0 | - | 4.43 | 48,621 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,732 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,364 |
| Cities of Ireland | 0 | - | 4.51 | 50,349 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.36 | 101,505 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.15 | 106,521 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.16 | 85,069 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.17 | 80,125 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.39 | 33,389 |
| Biggest U.S. Cities Starting with P | 0 | - | 4.04 | 67,214 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.27 | 73,129 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.37 | 81,338 |
