Penobscot_Building_Annex
Penobscot Building Annex
Commercial offices in Detroit, Michigan
The Penobscot Building Annex is a 23-story, 94.49 m (310.0 ft) office skyscraper located at 144 West Congress Street in Downtown Detroit, Michigan. This portion of the Penobscot Block is now physically connected to the newer Penobscot Building Tower.
The Penobscot Building Annex is a contributing property in the Detroit Financial Historic District, and on the National Register of Historic Places.