Bell Telephone Company of Pennsylvania Western Headquarters Building

Stanwix Street is a street nearly half a mile long near The Point in Downtown Pittsburgh. Running south from the Allegheny River to the Monongahela River, it is the western terminus of Forbes Avenue, and intersects 8 other streets. On it sits PPG Place and Fifth Avenue Place, the 3rd and 4th tallest buildings in Pittsburgh.

The United Steelworkers Building, originally named the IBM Building and also known as the I.W. Abel Building or Five Gateway Center, is a highrise office building in Downtown Pittsburgh, Pennsylvania. It was built by the Equitable Life Assurance Society in 1961–64 as part of the Gateway Center project which redeveloped a large portion of the area known as the Point. The building is listed on the National Register of Historic Places as a contributing property in the Pittsburgh Renaissance Historic District and has been designated as a Pittsburgh landmark by the Pittsburgh History and Landmarks Foundation.The building was designed by Curtis and Davis, a New Orleans-based architecture firm, with structural engineers Worthington, Skilling, Helle & Jackson. The design of the building, featuring a load-bearing steel diagrid exoskeleton, was highly unusual at the time and helped pioneer the use of diagrids and framed tube construction.

The Wabash Pittsburgh Terminal was a railroad station located in Pittsburgh, Pennsylvania, United States. Constructed in 1903 and opened on April 13, 1904, the 11 floor Beaux-Arts domed 197 foot tall terminal was designed by Theodore Carl Link and cost George Jay Gould $800,000 ($24.1 million in 2021 dollars). Floors 1 through 3 contained ticketing, passenger waiting areas and some retail with floors 4 and above serving hundreds of offices of Gould's Wabash Railway Corporation. The terminal lasted only four years as a Wabash Railroad terminal when the Wabash Pittsburgh Terminal Railway entered receivership on May 29, 1908. The Wabash would go on to lose both this railway and end affiliation with the Wheeling and Lake Erie Railway. The terminal continued to service passenger traffic until October 31, 1931, but survived beyond that as an office building and freight-only facility. The adjacent freight warehouse was closed after two successive fires on March 6, and March 22, 1946 destroyed most of the infrastructure. The station was announced for demolition on July 5, 1953 to make way for the Gateway Center complex. Demolition started on October 5, 1953 and was completed in early 1954.

The Archdiocese of Pittsburgh and Western Pennsylvania is a diocese of the Orthodox Church in America (OCA). Its territory includes parishes, monasteries, and missions located in three states in the United States – Pennsylvania, Ohio, and the entirety of West Virginia. The diocesan chancery is located in Cranberry Township, Pennsylvania. The current bishop of Pittsburgh and Western Pennsylvania, Melchisedek (Pleska), was enthroned on June 27, 2009. The previous Archbishop of Pittsburgh and Western Pennsylvania, Kyrill (Yonchev), died on June 17, 2007.

Four Gateway Center is a 305 ft (93 m) skyscraper in Pittsburgh, Pennsylvania. It was completed in 1960 at a cost of $16 million ($149 million in 2021 dollars) and opened on June 24 of that year. It is the 26th tallest building in Pittsburgh and has 22 floors. Virtually all materials used to construct the tower were products of Pennsylvania factories and mills.

Mamaux Building located at 123 First Avenue in downtown Pittsburgh, Pennsylvania, was built circa 1865. This Italianate style building was added to the List of City of Pittsburgh historic designations on July 27, 1995.

The Guckenheimer Warehouse, or the former Guckenheimer Whiskey Warehouse, is located at 125 First Avenue in the Downtown neighborhood of Pittsburgh, Pennsylvania. The building served as the warehouse for the Guckenheimer Whiskey barrels, which were distilled in Freeport, Pennsylvania, until prohibition caused the company to shut down.

11 Stanwix Street, formerly known as Westinghouse Tower, is one of the major distinctive and recognizable features of Downtown Pittsburgh, Pennsylvania, USA. The tower was originally built and named for the Westinghouse Corporation; in 1999 that company went through a restructuring and moved its headquarters to its longtime research park in the suburb of Monroeville, before expansions in their operations necessitated a move to a larger suburban complex in Cranberry Township. As of June 2009, the building tenants are IBM, the Allegheny Conference on Community Development, the advertising firm Brunner, and the local headquarters of KeyCorp. 11 Stanwix Street was completed on November 24, 1969, and has 23 floors. It rises 355 feet (108 meters) above Downtown Pittsburgh and is located along the Monongahela River. A ten-story building that once served as the city's main post was previously located on this site.

Three Gateway Center is a 344 ft (105m) skyscraper in Pittsburgh, Pennsylvania. It was completed in 1952 and has 24 floors. It is the 20th tallest building in Pittsburgh.

The Gateway Center is a complex of office, residential, and hotel buildings covering 25 acres (10 ha) in Downtown Pittsburgh, Pennsylvania. It lies between Commonwealth Place and Stanwix Street at the western edge of the central business district, immediately to the east of Point State Park. Construction of the Gateway Center was one of the earliest urban renewal projects in the United States and part of Pittsburgh's Renaissance I programs which reshaped large sections of the city. The project was developed by the Equitable Life Assurance Society and built between 1950 and 1969. In May 2013, the National Park Service designated a historic district named the "Pittsburgh Renaissance Historic District" which encompasses both the Gateway Center and neighboring Point State Park. All of the Gateway Center buildings were designated as contributing properties in the district except for one, the former State Office Building, which was considered to have lost its architectural integrity due to a 1980s remodeling.

PPG Place is a complex in downtown Pittsburgh, Pennsylvania, consisting of six buildings within three city blocks and five and a half acres. PPG Place was designed by architects Philip Johnson and John Burgee. Named for its anchor tenant, PPG Industries, who initiated the project for its headquarters, the buildings are all of matching glass design consisting of 19,750 pieces of glass. The complex centers on One PPG Place, a 40-story office building. Groundbreaking ceremonies occurred on January 28, 1981. The complex buildings opened between 1983 and 1984, and a dedication ceremony took place on April 11, 1984. Total cost of construction was $200 million ($561.6 million today). The buildings were sold by The Hillman Company to Highwoods Properties in 2011.

Pittsburgh Renaissance Historic District is a historic district in the Central Business District of Pittsburgh, Pennsylvania, United States. Bounded by Stanwix Street and the Allegheny, Monongahela and Ohio Rivers, it was listed on the National Register of Historic Places on May 2, 2013. It includes within its boundary the Forks of the Ohio, as well as Gateway Center, the Bell Telephone Company Building, and the Pittsburgh Post-Gazette Building which was constructed in 1927.