1400 John F. Kennedy Boulevard

At the time of construction, Philadelphia City Hall at 1400 John F. Kennedy Boulevard in Center City was a building that was both ahead of its time and inspired by traditional design. The municipal floors and the clock tower feature stone walls, cornices, pillars, and decorative additions that brought the public to awe. The 548-foot structure was designed by John McArthur Jr. and Thomas Ustick Walter, who have both worked on other well-known buildings. John McArthur Jr. designed the First National Bank, and Thomas Ustick Walter designed the new and current dome of the Capital Building in Washington D.C. While the highest space in the building sits nine floors above ground, the clock tower stands hundreds of feet tall and was constructed just after the municipal floors. Today Philadelphia YIMBY looks at the construction of the clock tower, which ranks as the world’s tallest freestanding masonry building.