| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,617 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 79,483 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 144,655 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 105,224 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 70,965 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.87 | 101,267 |
| Biggest Cities in France - Extreme | 0 | - | 4.90 | 45,614 |
| Biggest Cities in Germany | 0 | - | 4.95 | 268,235 |
| Biggest Cities in the World | 0 | - | 4.90 | 703,401 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,312 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,482 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 43,097 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.91 | 30,472 |
| Biggest Cities in Sweden | 0 | - | 4.84 | 37,875 |
| Biggest City by Time Zone | 0 | - | 4.85 | 56,055 |
| Biggest City in Every Country | 0 | - | 4.98 | 81,531 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 174,464 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 94,356 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 99,737 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 66,878 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 203,460 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.84 | 73,460 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,787 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 378,564 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.95 | 67,004 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 43,022 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 310,094 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.90 | 100,418 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 60,940 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 47,017 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 56,806 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 109,699 |
| Biggest Cities in the United States | 0 | - | 4.93 | 849,739 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 338,814 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.84 | 44,796 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 523,392 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,891 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.70 | 75,254 |
| Largest Nordic Cities on a Map | 0 | - | 4.82 | 30,819 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.82 | 53,853 |
| Biggest Cities in Mexico | 0 | - | 4.51 | 34,993 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,703 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 110,253 |
| Biggest Cities by Language | 0 | - | 4.95 | 216,522 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 65,394 |
| Most Populous World Capitals | 0 | - | 4.94 | 162,438 |
| Biggest European Cities by Century | 0 | - | 4.98 | 120,606 |
| Megacities on a World Map | 0 | - | 4.98 | 223,815 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 60,947 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 64,759 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 92,140 |
| Biggest City in Each U.S. State | 0 | - | 4.86 | 153,520 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,560 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.88 | 51,689 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 93,716 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 156,804 |
| Biggest Cities in Europe | 0 | - | 4.75 | 489,986 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 53,000 |
| Megacities on an Empty Map | 0 | - | 4.95 | 88,838 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 49,221 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 66,951 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 41,853 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,509 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 68,626 |
| Biggest English Cities by Century | 0 | - | 4.90 | 100,577 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.50 | 63,239 |
| U.S. States by Second Most Populous City | 0 | - | 4.43 | 40,866 |
| Biggest "Saint" Cities - United States | 0 | - | 4.47 | 34,423 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 37,528 |
| Biggest Cities in Australia on a Map | 0 | - | 4.62 | 33,692 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 30,450 |
| Biggest Cities in California | 0 | - | 4.35 | 132,085 |
| Biggest Cities in Florida | 0 | - | 4.20 | 68,218 |
| Biggest Cities in New York State | 0 | - | 4.29 | 56,523 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 43,193 |
| Biggest Cities in Ohio | 0 | - | 4.37 | 46,306 |
| Biggest Cities in Texas | 0 | - | 4.26 | 112,555 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,728 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.44 | 62,098 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.47 | 46,796 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 69,654 |
| Biggest Mediterranean Cities | 0 | - | 4.58 | 87,303 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.58 | 37,232 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.63 | 37,649 |
| Biggest Cities in Japan | 0 | - | 4.66 | 76,712 |
| Biggest Cities in Russia | 0 | - | 4.49 | 77,658 |
| Biggest Cities in France | 0 | - | 4.72 | 203,377 |
| Biggest Cities in Spain | 0 | - | 4.55 | 156,405 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 51,227 |
| Biggest Cities in Poland | 0 | - | 4.57 | 49,115 |
| Biggest Cities in the UK | 0 | - | 4.46 | 95,231 |
| Biggest Cities in China | 0 | - | 4.55 | 141,893 |
| Cities of Ireland | 0 | - | 4.49 | 46,240 |
| Biggest Cities in Canada | 0 | - | 4.66 | 122,506 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 44,149 |
| Biggest Cities in India | 0 | - | 4.71 | 63,338 |
| Biggest Cities in Italy | 0 | - | 4.66 | 221,574 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.45 | 61,125 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,435 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 98,303 |
| Biggest Cities by Trait #1 | 0 | - | 4.43 | 43,392 |
| Biggest City by Region | 0 | - | 4.50 | 34,067 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 54,064 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 78,976 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,691 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 78,056 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.48 | 21,213 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,456 |
| Biggest Cities in New Zealand | 0 | - | 4.57 | 23,004 |
| Biggest English-Speaking Cities | 0 | - | 4.43 | 137,544 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 120,385 |
| Biggest City by Island | 0 | - | 4.57 | 46,132 |
| Biggest Cities in History | 0 | - | 4.50 | 81,922 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 68,582 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.65 | 63,358 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.38 | 37,948 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 40,655 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.25 | 95,383 |
| Biggest World Cities in 1850 | 0 | - | 4.63 | 65,181 |
| Cities on Interstate 90 on a Map | 0 | - | 4.44 | 29,275 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 169,106 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.46 | 28,896 |
| Biggest Cities in Portugal | 0 | - | 4.42 | 19,144 |
| Biggest Cities in New Jersey | 0 | - | 4.10 | 25,378 |
| Biggest Cities in Colorado | 0 | - | 4.04 | 30,316 |
| Biggest Cities in Virginia | 0 | - | 4.21 | 23,345 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 19,084 |
| Biggest Cities in Alaska | 0 | - | 4.27 | 23,989 |
| Biggest Cities in Arizona | 0 | - | 4.28 | 29,116 |
| Biggest Cities in Illinois | 0 | - | 4.33 | 24,990 |
| Biggest Cities in Louisiana | 0 | - | 4.12 | 18,561 |
| Biggest Cities in Massachusetts | 0 | - | 4.38 | 28,183 |
| Biggest Cities in Michigan | 0 | - | 3.97 | 32,690 |
| Biggest Cities in Missouri | 0 | - | 4.21 | 16,086 |
| Biggest Cities in Tennessee | 0 | - | 4.24 | 19,437 |
| Biggest Cities in Indiana | 0 | - | 4.29 | 24,557 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 114,167 |
| Biggest Cities Starting With D | 0 | - | 4.49 | 108,443 |
| Biggest Cities Starting With H | 0 | - | 4.57 | 99,375 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 112,367 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 131,050 |
| Biggest Cities Starting With P | 0 | - | 4.48 | 116,443 |
| Hawaiian Islands | 0 | - | 4.86 | 38,961 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 42,679 |
| Biggest U.S. Cities A-Z | 0 | - | 4.71 | 132,818 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 124,471 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,922 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,639 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 70,684 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 39,262 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,935 |
| Biggest Coastal City by Country | 0 | - | 4.60 | 27,153 |
| Biggest City by Region #2 | 0 | - | 4.46 | 23,395 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,447 |
| U.S. Cities by Hispanic Population | 0 | - | 4.27 | 24,764 |
| Northernmost Major City by Country | 0 | - | 4.56 | 31,237 |
| The Most Populous U.S. City by Category | 0 | - | 4.31 | 20,961 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,594 |
| Random U.S. State Capitals on a Map | 0 | - | 4.94 | 93,292 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.84 | 51,613 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,329,639 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,551 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 100,721 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 154,879 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,812 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 83,217 |
| Flags to Largest Cities | 0 | - | 4.55 | 33,034 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,669 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.21 | 17,578 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,979 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 206,164 |
| Biggest Cities Starting With B | 0 | - | 4.36 | 150,523 |
| Biggest Cities Starting With C | 0 | - | 4.08 | 98,143 |
| Biggest Cities Starting With K | 0 | - | 4.30 | 80,059 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 116,688 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 117,960 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 464,842 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,172 |
| Countries with Megacities | 0 | - | 4.99 | 202,034 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,534 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,040 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,350 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,971 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,298 |
| Largest World Cities With Four Letters | 0 | - | 4.38 | 43,608 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 65,640 |
| Biggest Cities in Georgia | 0 | - | 3.96 | 22,052 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,168 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,499 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,483 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,654 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,295 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,334 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,388 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,594 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,367 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.40 | 89,561 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.39 | 75,487 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.30 | 83,914 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.08 | 89,545 |
