Once known for its steel mills and smoke-filled air, Pittsburgh has emerged as a leader in the "green" movement, with more green square footage than any other city in the United States. The David L. Lawrence Convention Centerwas awarded Gold Leadership in Energy and Environmental Design (LEED) certification in new construction and Platinum in existing building, making it the first "green" convention center in the U.S. and the largest "green" building in the world. The Tower at PNC Plaza rises 33 stories and is the world's "greenest" office tower in the world. The building is LEED Platinum certified, the U.S. Green Building Council's highest certification rating, and features state-of-the-art technology, including a solar chimney, optimally oriented building facades and a rain water collection that significantly reduces water use.
Pittsburgh is a city where old buildings find a new life, different than their original design. Located in Lawrenceville, the city's biggest and arguably hippest neighborhood, sits Church Brew Works. Built in the early 1900s, St. John the Baptist Church was converted into one of the country's most beautiful church breweries. Engine House 25 is a renovated firehouse, featuring a commercial photography studio, an operational winery, a wine cellar and The Clemente Museum, dedicated to the memory legendary Pittsburgh Pirates outfielder, Roberto Clemente. Floors 15-25 of the city’s Henry W. Oliver Building, a 25-story skyscraper originally built in 1908, have recently been converted to the 225 suite Embassy Suites by Hilton Pittsburgh-Downtown.
Individuals who visit Pittsburgh are treated to some of the most exquisite buildings in the country. The Cathedral of Learning, the centerpiece of the University of Pittsburgh's main campus, is the tallest education building in the United States at 42 stories high. In 1924, local industries, 17,000 men "Commons Rooms" at ground level, the world-renowned Nationality Rooms, libraries, a restaurant, offices and classes. One of the most distinctive buildings in Pittsburgh's picturesque skyline is PPG Place, headquarters for PPG Industries, Inc. It consists of six buildings, all of matching glass design consisting of 19,750 pieces of glass, located within three city blocks and five and a half acres.