EXPLORED! This building makes me sad everytime I see it.
Originally opening in 1913 ( and subsequently abandoned in 1988 ) , this train station is THE ICON of the Detroit Ruins. Located in Detroit's oldest district, Corktown, this building is right around the corner from another icon, the abandoned ( and soon to be demolished ) Tiger Stadium. The 2 upper levels were meant to be office buildings and were never actually finished.
When this station was originally built, they used 7,000 tons of steel and 7 million bricks and was designed by the same firm that designed New York's Grand Central Station. The building is 345 feet wide and 230 feet high. Built in a Beaux-Arts Architectural style, this building was used until January of 1988 when Amtrak abandoned it. It was named a National Historic Building in 1975.