21. Looking northwest showing Columbus Plaza, Union Station and southeast corner of city Post Office - City Post Office, 2 Massachusetts Avenue, Northwest, Washington, District of Columbia, DC

ID: 3313 ~ Source: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA

This file appears in: Union Station and Plaza: This grand train and bus terminal became the gateway to the nation's capital upon its opening in 1907.

This file appears in: Union Station and Plaza: This grand train and bus terminal became the gateway to the nation's capital upon its opening in 1907.

Union Station and Plaza: This grand train and bus terminal became the gateway to the nation's capital upon its opening in 1907.

By The DC Historic Sites team

One of the first great union terminals, this imperial station with its vast interior spaces was the cornerstone of the McMillan Commission’s efforts to revive Pierre L’Enfant’s original plan of the…