What U.S. city is known as the Mile High City?

Denver, Colorado is nicknamed the Mile-High City because its official elevation is exactly one mile (5,280 ft or 1,610 m) above sea level, making it one of the highest major cities in the United States.

It is a diverse metropolis, nestled on a plateau at the base of the majestic Rocky Mountains. Denver is home to the State’s Capitol and is also Colorado’s largest city. Denver is the most populous urban community of the Mountain West. Historically, it has been important for the agriculture of the high-plains region, that's why it was also nicknamed the Queen City of the Plains.

Denver's high elevation influences the life of the residents of the city. They say it's easier to get drunk in Denver than at sea level due to its rarified air. Another interesting thing is that golf balls usually go 10% farther for the same reason.

Denver now ranks No. 1 on U.S. News & World Report's list of the 2016 Best Places to Live in the USA.