Trinity Cathedral (Pittsburgh)

The First Presbyterian Church of Pittsburgh is an active congregation in Pittsburgh, Pennsylvania, USA. The church structure in use today was completed in 1905.

The Henry W. Oliver Building is a 25-story, 106 m (348 ft) skyscraper at 535 Smithfield Street, across from Mellon Square in Pittsburgh, Pennsylvania. The building was designed by Daniel Burnham and built 1908-10, consisting of a stone and terra cotta facade over a steel frame. It cost $3.5 million ($105.6 million today)

The Duquesne Club is a private social club in Pittsburgh, Pennsylvania, founded in 1873.

The Heinz 57 Center is an office building in Pittsburgh, Pennsylvania at the corner of Sixth and Smithfield Avenues. The building has approximately 790,000 square feet (73,000 m2), standing 13 stories (190 feet (58 m)) tall.It was built in 1914 for the Kaufmann & Baer Co. department store. From 1925 to 1986 the building housed a Gimbels department store. Sitting largely vacant for 15 years, the building was remodeled into office space, serving as H.J. Heinz Co. North American Headquarters from 2002 to 2013. The building was designated as historical landmark by the Pittsburgh History & Landmarks Foundation in 1982.

Mellon National Bank Building (also known as Lord & Taylor Department Store) at 514 Smithfield Street in downtown Pittsburgh, Pennsylvania, was completed in 1924 after Mellon acquired the property in August 1916 from the Baltimore & Ohio Railroad which had their regional offices on the site. Prior to the B&O office the site was the original home to the city's first public high school (Central High) which opened in the fall of 1855. The Classical styled building was designed by architects Trowbridge & Livingston with Edward Mellon. It was added to the List of Pittsburgh History and Landmarks Foundation Historic Landmarks in 1976, and the List of City of Pittsburgh historic designations in July 1999.On July 30, 1999, May & Co. bought the structure for $9.250 million from Mellon ending branch services at the site. The building was converted into a multi-level department store despite the protests of historical preservationists. It opened as Lord & Taylor on November 1, 2000, after a $12 million refurbishment (18.9 million in 2021 dollars).On May 31, 2012 PNC Financial Services purchased the structure after Lord & Taylor closed in 2004.

Mellon Square is an urban park in Downtown Pittsburgh, Pennsylvania. It is the first Modernist park built above a parking garage. With its distinctive black, white and green geometric pavement, it is a prominent urban oasis and gathering spot in Downtown Pittsburgh. The square, bounded by Smithfield Street, William Penn Place, and Oliver and Sixth Avenues, is surrounded by prominent downtown buildings including the Oliver Building, 525 William Penn Place, Omni William Penn Hotel, and the Regional Enterprise Tower. It has long been a popular lunchtime destination for downtown workers. In addition, retail shops are housed underneath it, along the Smithfield Street side of the square.

Wood Street Galleries, a visual arts project of the Pittsburgh Cultural Trust, is a gallery located in Downtown Pittsburgh, Pennsylvania. The gallery occupies the upper floors of the Max Azen company building, above the Wood Street light rail stop.

Downtown Pittsburgh, colloquially referred to as the Golden Triangle, and officially the Central Business District, is the urban downtown center of Pittsburgh. It is located at the confluence of the Allegheny River and the Monongahela River whose joining forms the Ohio River. The triangle is bounded by the two rivers. The area features offices for major corporations such as PNC Bank, U.S. Steel, PPG, Bank of New York Mellon, Heinz, Federated Investors, and Alcoa. It is where the fortunes of such industrial barons as Andrew Carnegie, Henry Clay Frick, Henry J. Heinz, Andrew Mellon and George Westinghouse were made. It contains the site where the French fort, Fort Duquesne, once stood.

Allegheny City was a municipality that existed in the U.S. state of Pennsylvania from 1788 until it was annexed by Pittsburgh in 1907. It was located north across the Allegheny River from downtown Pittsburgh, with its southwest border formed by the Ohio River, and is known today as the North Side. The city's waterfront district, along the Allegheny and Ohio rivers, became Pittsburgh's North Shore neighborhood. The area of Allegheny City included the present Pittsburgh neighborhoods of Allegheny Center, Allegheny West, Brighton Heights, California-Kirkbride, Central Northside, Chateau, East Allegheny, Fineview, Manchester, Marshall-Shadeland, North Shore, Northview Heights, Perry North, Perry South, Spring Garden, Spring Hill–City View, Summer Hill, and Troy Hill.

525 William Penn Place (also known as the Citizens Bank Tower) is a skyscraper located in downtown Pittsburgh, Pennsylvania. It was completed in 1951 for the Mellon National Bank and the U.S. Steel Corporation. At 520 feet (160 m) tall, it was the second-tallest building in Pittsburgh until 1970, and the third-tallest until 1984. The building has 41 floors and approximately 950,000 square feet (88,000 m2) of office space. Presently it is the third-largest office building by square feet in downtown Pittsburgh. In 2016, BNY Mellon sold the building for $67.65 million.

The Warner Centre is a former theater and concert hall located at 332 Fifth Avenue in Downtown Pittsburgh. It opened as the Grand Theatre on March 7, 1918, with Douglas Fairbanks in Headin' South and Winifred Westover in Her Husband’s Wife. The theater was renamed Warner Theatre on January 2, 1930. In 1983 the theater was closed, the auditorium was demolished, and a two story shopping center named Warner Center was built on the site.It was turned into an indoor shopping mall. A food court there closed in 2003.

K&L Gates Center is a skyscraper office building located in Downtown Pittsburgh, Pennsylvania. The building (long known as One Oliver Plaza and briefly as FreeMarkets Center and later Ariba Center) was completed in 1968. It has 39 floors, and rises 511 feet (156 meters) above downtown Pittsburgh. The building sits at the intersection of Liberty Avenue, Sixth Avenue and Wood Street. Facing the EQT Plaza tower across the street, it shares a city block with One PNC Plaza, Two PNC Plaza and Three PNC Plaza; this "superblock" was created by the closing of part of Oliver Avenue in the late 1960s. Located across the building is Wood Street Station, a subway station on Pittsburgh's light rail network. In 2007, the international law firm K&L Gates entered into an agreement to become the largest tenant in the building by 2010. In 2009, extensive construction began on the building lobby, the exterior facade of the first two floors and the plazas surrounding the building. The K&L Gates signage replaced Ariba at the top of the building. K&L Gates also removed a sculpture in the building's lobby in order to maintain a consistent decor. The artwork, a large enamel-on-steel mural by Virgil Cantini, has been donated to the University of Pittsburgh by the building's owner. The lobby was reopened in February, 2010. In March 2010, K&L Gates became the building’s largest tenant, having sponsored both the renaming of the building and a revitalization of the building’s ground-floor lobby, exterior entry facade and adjoining plaza.Among the building's artwork is a new, illuminated entry portal connecting the building with the street, with five "Light Columns" created by artist Cerith Wyn Evans illuminating the interior space as well as the outside plaza. These columns are complemented by the neon wall sculpture "Mobius Strip", also by Wyn Evans, at the entry reception desk. The use of light within architectural environments is a cornerstone of Wyn Evans’s practice, with this site-specific piece having been created exclusively for the K&L Gates Center.