Driving Downtown – Denver Colorado USA – Episode 53. Starting Point: Colfax Avenue . Denver is one of the fastest-growing major cities in the United States and is the capital and most populous municipality of the U.S. state of Colorado. Denver is just east of the Front Range of the Rocky Mountains. Denver is nicknamed the Mile High City because its official elevation is exactly one mile (5280 feet or… Continue reading Driving Downtown – Denver 4K – Colorado USA