Denver International Airport (largest U.S. airport by land area)

Denver International Airport (DIA), located on the city's outskirts, opened in 1995 and is the largest U.S. commercial airport by land area, covering roughly 33,531 acres. DIA serves as a major national and international travel hub for Denver and the Rocky Mountain region, handling tens of millions of passengers annually. The airport campus includes public art installations and transportation connections that link it to Denver's cultural and civic life.