| Biggest Cities in Asia | 0 | - | 4.94 | 95,038 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 42,958 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 108,359 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 90,848 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 27,999 |
| Biggest Cities in India | 0 | - | 4.72 | 61,942 |
| Biggest Cities in the World | 0 | - | 4.89 | 678,877 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,143 |
| Biggest Cities in Germany | 0 | - | 4.95 | 260,894 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,473 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,007 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 74,728 |
| Biggest City by Time Zone | 0 | - | 4.83 | 53,456 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,614 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 167,396 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 90,863 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 94,568 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 61,766 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,476 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.85 | 70,231 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 367,435 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 64,259 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 42,016 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 301,530 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 96,184 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,069 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 54,440 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 105,023 |
| Biggest Cities in the United States | 0 | - | 4.92 | 808,665 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 320,875 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,180 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,466 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,504 |
| Most Populous World Capitals | 0 | - | 4.92 | 146,647 |
| Biggest European Cities by Century | 0 | - | 4.97 | 117,747 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,708 |
| Megacities on a World Map | 0 | - | 4.98 | 219,145 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 43,677 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 508,933 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,421 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 62,749 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,908 |
| 500 Biggest US Cities | 0 | - | 4.85 | 96,333 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 83,044 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 150,072 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 50,558 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,416 |
| Biggest Cities in France - Extreme | 0 | - | 4.88 | 43,002 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 153,748 |
| Biggest Cities in Europe | 0 | - | 4.75 | 457,915 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,841 |
| Biggest Cities in Japan | 0 | - | 4.66 | 74,907 |
| Biggest Cities in China | 0 | - | 4.64 | 136,974 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,377 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 37,871 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,103 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,093 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,544 |
| Biggest English Cities by Century | 0 | - | 4.89 | 99,006 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,360 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,247 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.64 | 36,492 |
| Biggest Cities in Russia | 0 | - | 4.49 | 75,936 |
| Biggest Cities in France | 0 | - | 4.76 | 197,656 |
| Biggest Cities in Spain | 0 | - | 4.50 | 152,260 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,695 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,648 |
| Biggest Cities in the UK | 0 | - | 4.45 | 92,589 |
| Cities of Ireland | 0 | - | 4.43 | 39,445 |
| Biggest Cities in Canada | 0 | - | 4.67 | 119,579 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,267 |
| Biggest Cities in Italy | 0 | - | 4.66 | 215,447 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,008 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,320 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 42,885 |
| Biggest City by Region | 0 | - | 4.49 | 33,376 |
| Most Populous 2nd Cities | 0 | - | 4.73 | 53,050 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,216 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 67,730 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,364 |
| Ten Northernmost Megacities | 0 | - | 4.49 | 46,823 |
| Ten Southernmost Megacities | 0 | - | 4.80 | 46,001 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,054 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 63,467 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,093 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 62,733 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 70,279 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,523 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,064 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,790 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.80 | 51,786 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,665 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 135,721 |
| Biggest City by Island | 0 | - | 4.57 | 45,611 |
| Biggest Cities in History | 0 | - | 4.49 | 79,497 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 67,689 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 39,878 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,303 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,136 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.45 | 28,372 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,676 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 111,153 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 106,228 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 96,797 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 109,625 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 127,598 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 113,591 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,052 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 61,279 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,638 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,497 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 12,979 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 28,793 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.20 | 16,799 |
| Biggest U.S. Cities A-Z | 0 | - | 4.59 | 121,678 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,171 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,858 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 98,489 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 69,940 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,850 |
| Biggest Nordic Cities | 0 | - | 4.37 | 59,531 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 26,964 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 151,102 |
| Biggest City by Region #2 | 0 | - | 4.45 | 22,961 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,134 |
| Northernmost Major City by Country | 0 | - | 4.55 | 30,677 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,010 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,142 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.45 | 28,594 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,533 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,144 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,740 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 192,258 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,302,176 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,554 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,156 |
| Countries with Megacities | 0 | - | 4.99 | 194,790 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,476 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,869 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,701 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,710 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,078 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,493 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 36,833 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 89,238 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,382 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,211 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,328 |
| Largest Nordic Cities on a Map | 0 | - | 4.73 | 22,826 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,749 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 146,945 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,213 |
| Biggest Cities Starting With K | 0 | - | 4.29 | 78,249 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 113,858 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 115,412 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.79 | 64,649 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,292 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,368 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,442 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,241 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,491 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,418 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 50,011 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,080 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,449 |
| Biggest Cities by Trait #2 | 0 | - | 4.37 | 14,073 |
| Flags to Largest Cities | 0 | - | 4.57 | 30,800 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 14,593 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 82,845 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.36 | 69,343 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,653 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,305 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,756 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,509 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,779 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,189 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 27,758 |
| Biggest Cities in California | 0 | - | 4.35 | 129,767 |
| Biggest Cities in Florida | 0 | - | 4.19 | 67,057 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,547 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,507 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,504 |
| Biggest Cities in Texas | 0 | - | 4.26 | 110,862 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,241 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,585 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,276 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,636 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,472 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,593 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,449 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,505 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 27,865 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,208 |
| Cities on Interstate 90 on a Map | 0 | - | 4.40 | 25,048 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 204,028 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,848 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,205 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,651 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,335 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,568 |
