The 14 "eight-thousanders[?]", 8,000 m or higher, all in the Himalayas:
By continent:
Europe
Asia
North America
South America
Africa
Oceania
Antarctica
Mars
See also: Mountain range, List of mountain ranges, List of volcanoes
... 13.9% who are 65 years of age or older. The median age is 38 years. For every 100 females there are 94.9 males. For every 100 females age 18 and over, there are 92.0 ...