The Latrobe Gate (also known as Main Gate, Washington Navy Yard) is a historic gatehouse located at the Washington Navy Yard in Southeast Washington, D.C. Built in 1806 and substantially altered in 1881, the ceremonial entrance to the U.S. Navy's oldest shore establishment is an example of Greek Revival and Italianate architecture. It was designed by the second Architect of the Capitol Benjamin Henry Latrobe, whose works include St. John's Episcopal Church, the Baltimore Basilica, and the United States Capitol. The Latrobe Gate is one of the nation's oldest extant examples of Greek Revival architecture. It was added to the National Register of Historic Places on August 14, 1973, and is a contributing property to the Washington Navy Yard's status as a National Historic Landmark.