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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.

The Penobscot Block is a complex of office towers centered on the 45-story Penobscot Building at the corner of Griswold Street and West Fort Street in Downtown Detroit, Michigan. The buildings on the block are named for the Penobscot, a Native American tribe from Maine.

The Hammond Building was a high-rise building completed in 1889 at the southeast corner of Griswold Street and West Fort Street in the financial district of downtown Detroit, Michigan directly across Fort Street from the Detroit City Hall. The 46 m (151 ft) building was designed by George H. Edbrooke, and is considered the first skyscraper in the city, and was the tallest in the state when built. Russell Wheel & Foundry supplied and erected the iron and structural steel for the building. The Hammond Building was demolished in 1956 to make way for the National Bank of Detroit Building, which has since been renamed The Qube. At 12 stories, the steel-framed United Way Community Services Building (1895), originally the Chamber of Commerce Building, qualifies as Detroit's oldest existing skyscraper.

Griswold Street is a major north-south street in downtown Detroit, which passes through the city's Financial District lined with many of its most familiar and recognizable structures, such as the Guardian Building and One Woodward Avenue. Griswold Street also passes through the Capitol Park Historic District.

The Penobscot Building is the original 13-story building of the Penobscot Block complex in downtown Detroit, Michigan. It is the first Penobscot Building, and one of three buildings of the same name in the later-constructed complex. It is located at 131 West Fort Street, within the Detroit Financial District.

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.

The Qube, previously known as the Chase Tower, the Bank One Center, and the National Bank of Detroit Building, is a high-rise office building and Quicken Loans operations center in the U.S. designated Detroit Financial District at 611 Woodward Avenue, in Downtown Detroit, Michigan. It was built in 1959 and stands at 14 floors in height. It was completely remodeled in 2011 and is currently in the process of remodeling again. It was designed in the modern architectural style, and uses a great deal of marble to coordinate with the buildings in the nearby Civic Center. It was designed by Albert Kahn Associates.

The Detroit Financial District is a United States historic district in downtown Detroit, Michigan. The district was listed on the U.S. National Register of Historic Places on December 14, 2009, and was announced as the featured listing in the National Park Service's weekly list of December 24, 2009.It includes 33 buildings, two sites, and one other object that are deemed to be contributing to the historic character of the district, and also three non-contributing buildings.The American Institute of Architects describes Detroit's Financial District as "one of the city's highest concentrations of quality commercial architecture". According to the National Park Service: From the 1850s to the 1970s the Financial District in downtown Detroit was the financial and office heart of the city, and it stills retains an important banking and office presence today. Banks began to locate along Jefferson Avenue in the Griswold and Shelby streets area in the 1830s. Substantial office buildings, often containing banks in their street levels, began to line Griswold in the 1850s. Detroit's massive early twentieth-century auto industry-related growth and economic boom resulted in large-scale redevelopment of the area between 1900 and 1930, and another wave of development took place in the 1950s and early 1960s. The Financial District continues today to be an important financial and office district in Detroit. In the new millennium, the 47-story Penobscot Building stands at the center of the district as a state of the art class-A office tower and serves as a hub for the city's wireless Internet zone and fiber-optic communication network. Other major class-A office renovations include the Chrysler House and the Guardian Building, a National Historic Landmark. The Financial District is served by the Detroit People Mover and QLine light rail. Viewed from the International Riverfront, the district is bordered on the left by the 150 West Jefferson skyscraper which replaced the Detroit Stock Exchange Building and on the right by the One Woodward Avenue skyscraper.

Savoyard Centre (1900), also known as State Savings Bank, is an office building at 151 West Fort Street in Downtown Detroit, Michigan. It was designated as a Michigan State Historic Site in 1981 and listed on the National Register of Historic Places in 1982. Another historic marker erected November 13, 1964, also notes that the site was previously occupied by Fort Lernoult until July 11, 1796, when, in compliance with the terms of the Treaty of Paris ending the American Revolutionary War, British troops had evacuated their last post in United States territory.

One Kennedy Square is a 10-story building located at 777 Woodward Avenue in Downtown Detroit, Michigan, near Campus Martius Park. The building is bordered by Griswold Street, Michigan Avenue and Woodward Avenue, and stands on the site of the old Detroit City Hall. It is occupied by the Ernst & Young accounting firm.

Chrysler House is a 23-story, 99 m (325 ft) skyscraper located at 719 Griswold Street in Downtown Detroit, Michigan. The class-A office building is adjacent to the Penobscot Building in the heart of the U.S. designated Detroit Financial District. It is used as an office building, with retail space on the street level. It was originally known as the Dime Building but has carried numerous names over the years.

The Buhl Building is a skyscraper and class-A office center in Downtown Detroit, Michigan. Architect Wirt C. Rowland designed the Buhl in a Neo-Gothic style with Romanesque accents. Constructed in 1925, it stands at 26 stories in the Detroit Financial District across Congress Street from the Penobscot Building and across Griswold Street from the Guardian Building, all of which were designed by Wirt C. Rowland. The Buhl Building stands on the corner of Congress St. West, and Griswold St. in Downtown Detroit. The building stands atop what used to be the Savoyard Creek near its confluence with the Detroit River. In 1836, the creek was covered and turned into a sewer. The Savoyard Club occupied the 27th floor of the Buhl Building from 1928 until its membership dwindled and the club closed in 1994. The Buhl Building houses the headquarters of SMART and the Detroit Transportation Corporation. Hubbell, Roth & Clark, a civil engineering firm, is also based in the building. The Citizens Bank Building in downtown Saginaw, Michigan was modeled after the Buhl Building. The architectural sculpture on the building was designed by Corrado Parducci.