This building is a historic building in Philadelphia and is the earliest existing stock exchange in the United States. You can see its location marked on the local guide map in Philadelphia. The building is on a triangular ground in the middle of the three roads. The square in front is paved with stones and has a sense of history. This building was designed by Philadelphia native architect William Strickland between 1832 and 1834 in the Greek Revival style. The white appearance is very conspicuous. The house was originally built to be used as a broker's office and a place for commodity trading. Later, the function here was replaced by the Philadelphia Stock Exchange.