Fodor's Expert Review U.S. Department of the Treasury

Once used to store currency, this is one of the most impressive Greek Revival buildings in the United States. Robert Mills, the architect responsible for the Washington Monument and the Smithsonian American Art Museum, designed the colonnade on 15th Street. After the death of President Lincoln, the Andrew Johnson Suite was used as the executive office while Mrs. Lincoln moved out of the White House. One of the highlights is the Cash Room. Initially opened in 1869, it served as a bank, providing essential services to the public and supplying local banks with coins and currency. Renovated in 1985, visitors can tour the historic room. Tours of the Treasury Building are available only to U.S. citizens or legal residents, and you must make the reservation in advance through your congressional office.