Penobscot Building - Credit: Wikimedia Commons
The Greater Penobscot Building, commonly known as the Penobscot Building, is a class-A office tower in Downtown Detroit, Michigan. Constructed in 1928, the Art Deco building is located in the heart of the Detroit Financial District. The Penobscot is a hub for the city's wireless Internet zone and fiber-optic network. Read more on Wikipedia
Source: en.wikipedia.org