like a sheer cliff for thirty stories, then has a series of setbacks culminating in a red neon beacon tower. Like many of the city's other Roaring Twenties buildings, it displays Art Deco influences, including its "H" shape (designed to allow maximum sunlight into the building) and the sculptural setbacks that cause the upper floors to progressively "erode". The opulent Penobscot is one of many buildings in Detroit that features architectural sculpture by Corrado Parducci. The ornamentation includes American Indian motifs, particularly in the entrance archway and in metalwork found in the lobby. At night, the building's upper floors are lit in floodlight fashion, topped with a red sphere. The building's architect, Wirt C. Rowland, also designed other Detroit skyscrapers, such as the Guardian Building and the Buhl Building, in the same decade. Penobscot Block The tower is also connected to two older and smaller buildings, the 1905 Penobscot Building and the Penobscot Building Annex (1916). Together, the buildings comprise the Penobscot Block, located at Griswold Street and West Fort Street. The Greater Penobscot was the last portion of the complex to be developed. Events On holidays, both the Penobscot Building and the nearby One Woodward Avenue light-up for the night, with red, white and blue for Independence Day and Canada Day; and red, white and green for the Christmas season. In addition, during the Christmas season, the Penobscot Building's radio broadcast tower is illuminated bright gold, to resemble a giant glowing Christmas tree topped with a flashing red beacon. The Penobscot Building has become a souvenir item along with other Detroit skyscrapers. The first televisions in Michigan were sold in the retail space on the Griswold level of this building. For a period of time in the late 1970s and early 1980s, it was renamed the City National Bank Building, after its major tenant. When City National was acquired by another bank and renamed, the historic Penobscot name was revived. Landmark The Penobscot Building is a contributing property in the Detroit Financial Historic District, and on the National Register of Historic Places. Tenants The Caucus Club, a restaurant known for hosting influential business officials, was located in Penobscot from 1952 until 2012. On October 4, 2012, the restaurant announced that it would close by the end of that month. Early in her career, Barbra Streisand appeared as one of the lounge singers at the Caucus Club in 1961. Caucus