| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,916 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,130 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,216 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,330 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,947 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 348,093 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.69 | 60,421 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.69 | 79,478 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,302 |
| Biggest Cities in the World | 0 | - | 4.92 | 804,261 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,970 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,371 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,432 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 97,118 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,475 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 99,813 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 47,926 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,457 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,540 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,076 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 116,256 |
| Biggest Cities in the United States | 0 | - | 4.94 | 985,286 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,659 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,793 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,746 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 227,016 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,280 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 149,391 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,626 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,139 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,808 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,524 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,590 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 65,114 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,259 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,067 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,878 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 581,234 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,806 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,435 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,476 |
| Largest City by Island | 0 | - | 4.87 | 72,339 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,352 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,551 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,039 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,302 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,454 |
| Megacities on a World Map | 0 | - | 4.98 | 256,462 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,186 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,697 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,536 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,924 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,876 |
| Cities of China (With Some Help) | 0 | - | 4.91 | 31,742 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,410 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,504 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,217 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,868 |
| Biggest Cities in Europe | 0 | - | 4.73 | 548,560 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.48 | 63,555 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,061 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,401 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 39,531 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,647 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,263 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,925 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,871 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,139 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,974 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,501 |
| Biggest Cities in California | 0 | - | 4.35 | 140,285 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,344 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,876 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,509 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,374 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,799 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,939 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,595 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,270 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,052 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 49,010 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,705 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.74 | 73,717 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,448 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.61 | 44,507 |
| Largest Nordic Cities on a Map | 0 | - | 4.78 | 37,331 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.70 | 67,905 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,335 |
| Biggest Cities in Brazil | 0 | - | 4.57 | 53,379 |
| Biggest Cities in Latin America | 0 | - | 4.48 | 64,940 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,001 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,623 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,123 |
| Biggest City by Region | 0 | - | 4.50 | 36,359 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,292 |
| Biggest Cities by Latitude Range | 0 | - | 4.80 | 32,452 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,507 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,822 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,284 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,426 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,501 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.52 | 23,717 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,539 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,122 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,647 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,968 |
| Biggest Cities in History | 0 | - | 4.52 | 90,507 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,834 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.56 | 65,559 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.78 | 47,066 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.54 | 43,575 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.30 | 118,168 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,656 |
| Biggest Cities in the Blue Banana | 0 | - | 4.57 | 36,621 |
| Biggest Urban Areas in the UK | 0 | - | 4.43 | 176,637 |
| Biggest Cities in Japan | 0 | - | 4.68 | 83,420 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,709 |
| Biggest Cities in France | 0 | - | 4.70 | 225,061 |
| Biggest Cities in Spain | 0 | - | 4.64 | 171,953 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 56,215 |
| Biggest Cities in Poland | 0 | - | 4.62 | 54,221 |
| Biggest Cities in the UK | 0 | - | 4.48 | 105,710 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 38,144 |
| Biggest Cities in China | 0 | - | 4.53 | 159,655 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,379 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 47,414 |
| Biggest Cities in India | 0 | - | 4.64 | 68,005 |
| Biggest Cities in Italy | 0 | - | 4.77 | 242,137 |
| Biggest Cities in New Jersey | 0 | - | 4.14 | 29,229 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,277 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,874 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,000 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,049 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,047 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,706 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,263 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,477 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,979 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,140 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 125,031 |
| Biggest Cities Starting With D | 0 | - | 4.52 | 117,085 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 109,872 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 123,470 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 143,948 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 127,607 |
| Hawaiian Islands | 0 | - | 4.83 | 42,891 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.75 | 43,904 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.41 | 23,696 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.44 | 14,702 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,561 |
| US States and State Capitals | 0 | - | 4.99 | 164,845 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,399 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,082 |
| Fastest Growing U.S. Cities | 0 | - | 4.35 | 73,159 |
| Biggest Nordic Cities | 0 | - | 4.36 | 61,677 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,128 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,179 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,897 |
| Biggest Cities by Trait #2 | 0 | - | 4.47 | 20,848 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,743 |
| The Most Populous U.S. City by Category | 0 | - | 4.37 | 22,457 |
| Cities of Ireland | 0 | - | 4.51 | 50,865 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 24,250 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.43 | 110,485 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.42 | 94,452 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,934 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,228 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,285 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,022 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,810 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,846 |
| Largest Cities in Alexander's Empire | 0 | - | 4.58 | 40,026 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,064 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,902 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.47 | 31,348 |
| Biggest Cities in Portugal | 0 | - | 4.43 | 21,146 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,976 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 24,007 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 163,673 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 105,725 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 87,439 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 127,237 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 128,729 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,369 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,800 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,817 |
| Countries with Megacities | 0 | - | 4.99 | 266,420 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,524 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,920 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,817 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,040 |
| Largest World Cities With Four Letters | 0 | - | 4.39 | 64,434 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,099 |
| Saint Lucia Country Quiz | 0 | - | 4.68 | 18,133 |
| Biggest U.S. Cities A-Z | 0 | - | 4.69 | 139,528 |
| Which City in Canada? | 0 | - | 4.83 | 57,298 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,586 |
| U.S. State Flags | 0 | - | 4.89 | 172,343 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,474 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,334 |
