As I was landing at Denver International Airport, I wondered why they call it the mile-high-city? I was expecting mountainous terrain and a lot of green.
Denver, at first glance, looks like any other major city in the USA, with urban sprawl and a city center with tall buildings.
But some points in the city are at an elevation of 5,280 feet (1,609 m) which is exactly one mile above sea level.
Interesting fact: The highest city in the US is in the state of Colorado. The city of Alma sits at an elevation of 10,578 feet.
A brass plaque embedded in one of the steps of the Colorado State Capitol building's Western entrance marks the exact spot where Denver's altitude is precisely one mile high.