One Liberty Place

The One Liberty Place Building is currently the tallest building in Philadelphia and the 16th tallest building in the United States. One Liberty Place is 61 floors or 945ft (288m) and is only two feet shorter than Key Tower in Cleveland, Ohio.

Completed in 1987, One Liberty Place was locally famous for being the first building to break the gentlemen's agreement which was not to exceed the 548ft (167m) height of the William Penn statue on Philadelphia City Hall built in 1901. Since One Liberty Place's completion over seven other skyscrapers have been built exceeding the statue's height. On January 3, 2005 it was announced that another, the Comcast Center, will be completed by late 2007 at a height of 975 feet, ending One Liberty Place's reign as Philadelphia's tallest although it will be only 57 stories.

After One Liberty Place's completion, a slightly smaller sister building known as Two Liberty Place (shown behind One Liberty Place in the picture) was built in 1990 at the same Liberty Place Complex.

The One Liberty Place Building has some of the newest technology available such as a modern exterior ice and snow melting system and a chilled water plant equipped with cooling towers, pumps, and chillers.

On October 12, 1999, One Liberty Place was sold to Philadelphia Liberty Property , L.P for $185 million and an additional $28.2 million for the land.

CIGNA, a large insurance corporation in the United States, has its headquarters in this building.

See also

• 50 Tallest buildings in the U.S.
• List of Skyscrapers
• World's tallest structures
• Curse of Billy Penn