About One Liberty Place
The One Liberty Place Building was formerly the tallest and is currently the second tallest building and skyscraper in the City of Philadelphia and the Commonwealth of Pennsylvania, after the Comcast Center. It is the 19th tallest building in the United States. Completed in 1987, One Liberty Place has 61 floors and is 945 ft (288 m) tall, only two feet (0.6 m) shorter than the Key Tower in Cleveland, Ohio. Designed by Helmut Jahn of Murphy/Jahn Architects, the building's spire echoes that of the Chrysler Building in New York City. After its completion, a slightly smaller sister building, Two Liberty Place, was erected in 1990 within the same complex. Rouse and Associates, which later went public as Liberty Property Trust, developed both One and Two Liberty Place as well as the Comcast Center. One Liberty Place was locally famous for being the first building to break the gentlemen's agreement not to exceed the 548 ft (167 m) height of the William Penn statue atop Philadelphia City Hall built in 1901. In breaking this agreement, the so-called "Curse of Billy Penn" was born — a Bambino-like hex that supposedly affected the city's major professional sport franchises.