| Biggest Cities in Asia | 0 | - | 4.94 | 95,194 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,067 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 108,559 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.90 | 91,095 |
| Cities of China (With Some Help) | 0 | - | 4.86 | 28,034 |
| Biggest Cities in the World | 0 | - | 4.89 | 680,682 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,270 |
| Biggest Cities in Germany | 0 | - | 4.95 | 261,334 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,074 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 75,028 |
| Biggest City by Time Zone | 0 | - | 4.84 | 53,724 |
| Biggest City in Every Country | 0 | - | 4.97 | 77,943 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 167,998 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 91,189 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 94,987 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 63,928 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,800 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 70,554 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 368,215 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 64,521 |
| Biggest Cities in Deserts | 0 | - | 4.93 | 42,095 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 302,050 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 96,482 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,216 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,078 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.96 | 54,616 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 105,302 |
| Biggest Cities in the United States | 0 | - | 4.92 | 810,231 |
| 100 Biggest Metro Areas in the USA | 0 | - | 4.98 | 321,367 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,333 |
| Biggest Cities by Language | 0 | - | 4.95 | 212,706 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,568 |
| Most Populous World Capitals | 0 | - | 4.92 | 147,029 |
| Biggest European Cities by Century | 0 | - | 4.98 | 117,895 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,957 |
| Megacities on a World Map | 0 | - | 4.98 | 219,416 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 43,729 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 509,936 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,507 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 62,884 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,040 |
| 500 Biggest US Cities | 0 | - | 4.87 | 96,722 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 83,349 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 150,326 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 50,636 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 90,567 |
| Biggest Cities in France - Extreme | 0 | - | 4.88 | 43,156 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,140 |
| Biggest Cities in Europe | 0 | - | 4.75 | 459,721 |
| Megacities on an Empty Map | 0 | - | 4.96 | 86,984 |
| Biggest Cities in Japan | 0 | - | 4.66 | 74,991 |
| Biggest Cities in China | 0 | - | 4.64 | 137,360 |
| Biggest Cities in India | 0 | - | 4.72 | 62,064 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.90 | 28,538 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.79 | 42,396 |
| All Cities in China with Population of 1 Million | 0 | - | 4.77 | 37,989 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 40,578 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 63,438 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,550 |
| Biggest Cities in Australia on a Map | 0 | - | 4.61 | 32,642 |
| Biggest English Cities by Century | 0 | - | 4.89 | 99,129 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,462 |
| Biggest Mediterranean Cities | 0 | - | 4.57 | 86,351 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.64 | 36,576 |
| Biggest Cities in Russia | 0 | - | 4.49 | 76,038 |
| Biggest Cities in France | 0 | - | 4.76 | 198,031 |
| Biggest Cities in Spain | 0 | - | 4.50 | 152,538 |
| Biggest Cities in The Netherlands | 0 | - | 4.50 | 49,788 |
| Biggest Cities in Poland | 0 | - | 4.56 | 47,764 |
| Biggest Cities in the UK | 0 | - | 4.46 | 92,799 |
| Cities of Ireland | 0 | - | 4.43 | 39,502 |
| Biggest Cities in Canada | 0 | - | 4.67 | 119,762 |
| Biggest Cities in Switzerland | 0 | - | 4.52 | 43,335 |
| Biggest Cities in Italy | 0 | - | 4.66 | 215,802 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.44 | 60,082 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,373 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 42,925 |
| Biggest City by Region | 0 | - | 4.49 | 33,482 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,129 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,255 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 75,132 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 46,872 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 48,122 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.76 | 63,716 |
| Biggest Cities in Turkey on a Map | 0 | - | 4.20 | 16,851 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,208 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 62,766 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.96 | 70,393 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.49 | 55,620 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 40,107 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 33,822 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.80 | 51,910 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 22,680 |
| Biggest English-Speaking Cities | 0 | - | 4.42 | 135,840 |
| Biggest City by Island | 0 | - | 4.57 | 45,633 |
| Biggest Cities in History | 0 | - | 4.49 | 79,657 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 67,757 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.50 | 39,942 |
| Biggest World Cities in 1850 | 0 | - | 4.58 | 64,354 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,251 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.45 | 28,403 |
| Biggest Cities in Portugal | 0 | - | 4.41 | 18,702 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 111,363 |
| Biggest Cities Starting With D | 0 | - | 4.48 | 106,383 |
| Biggest Cities Starting With H | 0 | - | 4.53 | 96,987 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 109,832 |
| Biggest Cities Starting With M | 0 | - | 4.50 | 127,833 |
| Biggest Cities Starting With P | 0 | - | 4.47 | 114,027 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 43,092 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.43 | 61,340 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.46 | 37,675 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.57 | 35,627 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.41 | 13,014 |
| Biggest Cities in Mexico | 0 | - | 4.54 | 28,908 |
| Biggest U.S. Cities A-Z | 0 | - | 4.64 | 121,770 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,403 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,028 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.79 | 98,644 |
| Fastest Growing U.S. Cities | 0 | - | 4.36 | 69,981 |
| Second Biggest Cities Quiz | 0 | - | 4.25 | 38,880 |
| Biggest Nordic Cities | 0 | - | 4.38 | 59,556 |
| Biggest Coastal City by Country | 0 | - | 4.59 | 26,987 |
| Five Biggest Cities by Country | 0 | - | 4.66 | 151,348 |
| Biggest City by Region #2 | 0 | - | 4.45 | 23,022 |
| Biggest Cities by Latitude | 0 | - | 4.76 | 26,164 |
| Northernmost Major City by Country | 0 | - | 4.55 | 30,722 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.70 | 56,070 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.71 | 74,228 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 28,613 |
| 100 Biggest Cities in New Zealand with a Map | 0 | - | 4.47 | 20,571 |
| Saint Lucia Country Quiz | 0 | - | 4.66 | 16,170 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 31,776 |
| Biggest World Cities A-Z | 0 | - | 4.55 | 192,643 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,304,281 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,916 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,482 |
| Countries with Megacities | 0 | - | 4.99 | 195,234 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,873 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 97,063 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,981 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,928 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,677 |
| Largest Cities in Alexander's Empire | 0 | - | 4.56 | 38,531 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 36,921 |
| 100 Biggest U.S. Cities on a Map | 0 | - | 4.24 | 89,720 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.47 | 52,433 |
| Biggest Cities in the World - 2100 | 0 | - | 4.29 | 80,432 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 24,347 |
| Largest Nordic Cities on a Map | 0 | - | 4.73 | 22,946 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 39,757 |
| Biggest Cities Starting With B | 0 | - | 4.35 | 147,195 |
| Biggest Cities Starting With C | 0 | - | 4.07 | 96,328 |
| Biggest Cities Starting With K | 0 | - | 4.29 | 78,379 |
| Biggest Cities Starting With S | 0 | - | 4.39 | 114,045 |
| Biggest Cities Starting With T | 0 | - | 4.30 | 115,595 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.80 | 64,730 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,514 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,539 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,802 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,385 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,573 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,569 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 50,121 |
| Jewish Cities Quiz | 0 | - | 4.31 | 59,129 |
| U.S. Cities by Hispanic Population | 0 | - | 4.26 | 24,474 |
| Biggest Cities by Trait #2 | 0 | - | 4.38 | 14,095 |
| Flags to Largest Cities | 0 | - | 4.54 | 31,407 |
| The Most Populous U.S. City by Category | 0 | - | 4.36 | 14,614 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.36 | 82,963 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.36 | 69,426 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.28 | 77,753 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 83,393 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.15 | 65,824 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.23 | 61,582 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.22 | 59,836 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.27 | 67,249 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 27,795 |
| Biggest Cities in California | 0 | - | 4.35 | 129,887 |
| Biggest Cities in Florida | 0 | - | 4.19 | 67,116 |
| Biggest Cities in New York State | 0 | - | 4.29 | 55,613 |
| Biggest Cities in Pennsylvania | 0 | - | 4.14 | 42,540 |
| Biggest Cities in Ohio | 0 | - | 4.36 | 45,533 |
| Biggest Cities in Texas | 0 | - | 4.26 | 110,963 |
| Biggest Cities in Wisconsin | 0 | - | 4.45 | 23,276 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,996 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,355 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,857 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,628 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,789 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,598 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,591 |
| Biggest Cities Near a Border | 0 | - | 4.20 | 28,060 |
| Cities in Squares on a Map - North America | 0 | - | 4.36 | 19,231 |
| Cities on Interstate 90 on a Map | 0 | - | 4.40 | 25,110 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 204,261 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,013 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,285 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,755 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,396 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,641 |
