Pennsylvania Station, NYC (1910–1963) Architects: McKim, Mead & White.  Built by: Pennsylvania Railroad (PRR). Penn Station was a monumental structure designed to celebrate rail travel. It opened in 1910 but was demolished in 1963 after only 53 years. It was located between 31st and 33rd Streets and 7th and 8th Avenues in Manhattan. The PRR also constructed a tunnel connecting Manhattan to the Hudson and East Rivers. The station's architecture was inspired by Roman architecture, particularly the Basilica of Constantine. The exterior featured massive Doric columns, and the interior featured a steel-and-glass train shed. The grand main waiting room was modeled after the Baths of Caracalla and boasted lavish interiors with coffered ceilings, travertine marble, and Décorative ironwork. However, by the 1950s, rail travel had declined due to the increased popularity of air travel and highways in the United States. Penn Station had become expensive to maintain and outdated. Demolition began in 1963 and was completed in 1966. Madison Square Garden was built on the site, and the station remains beneath it.