Merchants' Exchange Building

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Upon its completion in 1834, the building became the financial center for Philadelphia, housing commercial houses, marine insurance companies, the Philadelphia Board of Trade, and the Philadelphia Stock Exchange.

The building was designed by William Strickland and is an exquisite expression of the Greek Revival style.

The Choragic Monument of Lysicrates was the model for the building's lantern.

In 1952, the National Park Service bought the structure and maintains offices here to this day.

Located on the Dock Street side of the building, the United States Post Office occupied a large room and was the first in the country to sell stamps.