List of tallest buildings in Philadelphia

[10] Philadelphia's history of tall buildings is generally thought to have begun with the 1754 addition of the steeple to Christ Church, which was one of America's first high-rise structures.

[11] Through most of the 20th century, a "gentlemen's agreement" and economic restraints[12] prevented buildings from rising higher than the 548-ft (167-m) Philadelphia City Hall.

The completion of One Liberty Place in 1987 broke the agreement,[13] and Philadelphia has since seen the construction of eleven skyscrapers that eclipse City Hall in height.

[15][16] Like other large American cities, Philadelphia experienced a massive building boom in the 1970s and 1980s, resulting in the completion of 20 skyscrapers of 330 feet (101 m) or taller.

[17] This list ranks completed and topped out skyscrapers in Center City Philadelphia that stand at least 400 feet (122 m) tall, based on standard height measurement, including spires and architectural details but excluding antenna masts.