The National City Bank Building at 55 Wall Street between William and Hanover Streets in the Financial District of downtown Manhattan, New York City, was built in 1836-41 as the Merchants' Exchange, replacing the previous exchange, which had opened in 1827 and burned down in the Great Fire of New York in 1835. The new building was designed by Isaiah Rogers in the Greek Revival style. The United States Custom House moved into the building in 1862 – with the conversion of the building overseen by William A. Potter – and occupied it until 1907, when it moved to the Alexander Hamilton U.S. Custom House at 1 Bowling Green.