The silent tracks in the early 1970s.

Photo from the Detroit Free Press archives.

The lobby after renovations in 1946.

Photo from the Detroit Free Press archives.

The lobby after renovations in 1946.

Photo from the Detroit Free Press archives.

The lobby after renovations in 1946.

Photo from the Detroit Free Press archives.

The clock tower read "IIII" instead of "IV."

Photo from the Detroit Free Press archives.

Workers clean the depot's clock.

Photo from the Detroit Free Press archives.

Marshall Fredericks' "Romance of Transportation" is unveiled in the lobby in May 1951.

Photo from the Detroit Free Press archives.

The Union Depot saw transportation change from horses to cars.

Photo from the Detroit Free Press archives.

Photo from the Detroit Free Press archives.

Photo from the Detroit Free Press archives.

Photo from the Detroit Free Press archives.

The main entrance on Fort Street

Photo from the Detroit Free Press archives.

The boarded tunnel to the tracks in 1971, three years before the depot was razed.

Photo from the Detroit News archives.

The ticketing counter after the depot's modernization.

Photo from the Detroit News archives.

The Lodge (M-10) Freeway goes in next to the Union Depot about 1950.

Photo from the Detroit News archives.

The restaurant in the depot, in 1948, after its modernization.

Photo from the Detroit News archives.

The modernized waiting room

Photo from the Detroit Free Press archives.

The depot sits empty

Photo from the Detroit Free Press archives.

Photo from the Detroit News archives.

Photo from the Library of Congress.

The Union Depot and Fort Street Presbyterian Church on a stormy night.

Photo from the Detroit News archives.

The Union Depot from Third looking west

Photo from the Detroit Free Press archives.

The Fort Street entrance of the depot

Photo by Gordon Bugbee for HistoricDetroit.org

The Detroit News Building under construction, showing the Union Depot and Fort Street Presbyterian in the background.

Bentley Historical Library, University of Michigan

The Sportsman pulls out of Union Dept in Detroit in 1958.

Museum of the American Railroad

The Union Depot getting its clock cleaned, literally.

Photo from the Walter P. Reuther Library, Wayne State University

Photo from the Walter P. Reuther Library, Wayne State University

The Union Depot lobby shortly before it was modernized

Photo from the Walter P. Reuther Library, Wayne State University

Marshall Fredericks' "Romance of Transportation"

Photo from the Walter P. Reuther Library, Wayne State University

The Union Depot with Fort Street Presbyterian Church at left, as seen from the roof of the Detroit News Building

Photo from the Walter P. Reuther Library, Wayne State University

Photo from an old Detroit promotional booklet

Photo from the Detroit News archives