The enormous city hall is still the tallest and largest masonry building in the world. Since no steel frame was used, the walls at the first floor are up to 22ft thick to support all the weight from the floors above. The eight floors, each about 16ft high, look like just three floors from the outside. The central tower reaches a height of 511ft. It is topped by a statue of William Penn. The massive statue is 37ft high and weighs 27 ton. It is just one of 250 sculptures created by Alexander Calder for both the interior and exterior of the city hall. The building's more than 600 rooms are organized around a central courtyard, which can be reached via the large archways on each of the four sides. Many of the rooms are lavishly decorated, including the Reception Room with blue and gold ceiling and red marble columns, and the Conversation Hall which boasts a magnificent chandelier.
Market Street, originally known as High Street, is a major east–west street in Philadelphia, Pennsylvania. For the majority of its length, it serves as Pennsylvania Route 3. Market Street cuts the city in 2 from East to West, following Penn's plan.