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. Height Upon completion, the Penobscot Building was the eighth-tallest building in the world, the fourth-tallest in the United States and the tallest outside of New York and Chicago. Rising , the 47-story Penobscot was the tallest building in Michigan from its completion in 1928 until construction of the Renaissance Center hotel tower in 1977. Ally Detroit Center (formerly One Detroit Center) surpassed the Penobscot as the tallest office building in Detroit upon its completion in 1993. The framing elevation drawing of this building shows a height of to the highest roof, approximately to the parapet wall around the roof, and to the top of the warning beacon atop the antenna. The Penobscot has 45 above-ground floors and two basement levels, for a total floor count of 47. Although the Penobscot Building has more floors than Ally Detroit Center (45 above-ground floors compared to 43 for Ally Detroit Center), the floors and spires of One Detroit are taller, with its roof sitting roughly higher than that of the Penobscot. Name origin The building is named for the Penobscot, a Native American tribe from Maine. Native American motifs in art deco style ornamentation is used on the exterior and the interiors. The following version of the choice of the name of the building is found in an undated publication believed to have been published concurrent with the building's dedication in 1928: An intimation of the Simon J. Murphy Sr. family's early history, together with the expression of genuine sentiment regarding the beginnings of the Murphy fortune, is contained in the name of the Greater Penobscot Building...... Long before the Civil War days, Simon J. Murphy and his partner, then two lads who had grown up in the Maine woods obtained their first employment in one of the logging camps along the Penobscot River - a stream named for the powerful tribe of Penobscot Indians. Architecture The architect Wirt C. Rowland, of the prominent Smith Hinchman & Grylls firm based in Detroit, designed the Penobscot in an elaborate Art Deco style in 1928. Clad in Indiana Limestone with a granite base, it rises