| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,118 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,115 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,591 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,605 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,284 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,547 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 59,884 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 78,863 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,729 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,084 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,058 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,500 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,202 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.87 | 94,127 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 96,848 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 46,990 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,242 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,433 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,176 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,635 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,868 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,431 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,422 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,376 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,443 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,621 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,535 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,298 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,364 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,379 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 52,926 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,038 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,622 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,536 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,230 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,351 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 572,499 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,432 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,173 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,662 |
| Largest City by Island | 0 | - | 4.87 | 70,930 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,183 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,376 |
| Biggest European Cities by Century | 0 | - | 4.98 | 128,674 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.45 | 72,677 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,600 |
| Megacities on a World Map | 0 | - | 4.98 | 250,100 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 123,994 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,705 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,727 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,448 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,925 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,919 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 166,971 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,853 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,676 |
| Biggest Cities in Europe | 0 | - | 4.70 | 541,484 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,177 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,307 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 40,913 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 38,915 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,247 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,521 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,469 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,032 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,119 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,658 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,580 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,142 |
| Biggest Cities in California | 0 | - | 4.35 | 139,139 |
| Biggest Cities in Florida | 0 | - | 4.23 | 71,733 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,362 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,176 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,061 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,553 |
| Biggest Cities in Texas | 0 | - | 4.28 | 118,557 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,028 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,417 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,187 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,063 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 90,980 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.59 | 43,370 |
| Largest Nordic Cities on a Map | 0 | - | 4.77 | 36,724 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 48,777 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 31,897 |
| Biggest Cities in Brazil | 0 | - | 4.56 | 52,678 |
| All Cities in China with Population of 1 Million | 0 | - | 4.80 | 45,279 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,438 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,824 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,878 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,639 |
| Biggest City by Region | 0 | - | 4.50 | 35,960 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,860 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,947 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 83,932 |
| Northernmost Major City by Country | 0 | - | 4.56 | 32,995 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,197 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,878 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,358 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,230 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,262 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,167 |
| Biggest Cities in History | 0 | - | 4.52 | 89,031 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,037 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.61 | 65,291 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 46,835 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,152 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.29 | 114,794 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,138 |
| Biggest Urban Areas in the UK | 0 | - | 4.42 | 175,702 |
| Biggest Cities in Japan | 0 | - | 4.67 | 82,447 |
| Biggest Cities in Russia | 0 | - | 4.49 | 81,967 |
| Biggest Cities in France | 0 | - | 4.69 | 221,772 |
| Biggest Cities in Spain | 0 | - | 4.63 | 169,644 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 55,593 |
| Biggest Cities in Poland | 0 | - | 4.62 | 53,394 |
| Biggest Cities in the UK | 0 | - | 4.48 | 104,051 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 37,508 |
| Biggest Cities in China | 0 | - | 4.53 | 156,809 |
| Biggest Cities in Canada | 0 | - | 4.54 | 131,693 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 46,927 |
| Biggest Cities in India | 0 | - | 4.70 | 67,274 |
| Biggest Cities in Italy | 0 | - | 4.75 | 239,243 |
| Biggest Cities in New Jersey | 0 | - | 4.12 | 27,084 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,001 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,541 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 25,697 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,397 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 26,743 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 19,877 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,384 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,042 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,268 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,749 |
| Biggest Cities in Indiana | 0 | - | 4.27 | 26,807 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,363 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,850 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,262 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 121,761 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,007 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 125,874 |
| Hawaiian Islands | 0 | - | 4.83 | 42,393 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,697 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,538 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,538 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,087 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 158,024 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,958 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,242 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,823 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,425 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 27,961 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,519 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,646 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,454 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,164 |
| Flags to Largest Cities | 0 | - | 4.55 | 50,697 |
| The Most Populous U.S. City by Category | 0 | - | 4.35 | 22,238 |
| Cities of Ireland | 0 | - | 4.51 | 50,272 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,080 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 109,210 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 93,329 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,163 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,560 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,356 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,962 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,453 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,830 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.78 | 68,494 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 39,832 |
| Biggest Cities Near a Border | 0 | - | 4.21 | 31,718 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,714 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 30,957 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 20,771 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,829 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 23,738 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 161,588 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,483 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,535 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 125,643 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,326 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,112 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,849 |
| Countries with Megacities | 0 | - | 4.99 | 246,119 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,760 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,726 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,226 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,659 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,507 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,863 |
| Saint Lucia Country Quiz | 0 | - | 4.65 | 17,920 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 138,708 |
| Which City in Canada? | 0 | - | 4.82 | 56,601 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,300 |
| U.S. State Flags | 0 | - | 4.89 | 166,638 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,061 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,022 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,712 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,652 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,656 |
