401 Park

The Landmark Center or 401 Park Building in Boston, Massachusetts is a commercial center situated in a limestone and brick art deco building built in 1928 for Sears, Roebuck and Company. It features a 200-foot-tall tower and, as Sears Roebuck and Company Mail Order Store, it is listed on the National Register of Historic Places and designated as a Boston Landmark in 1989.

The building is located at the intersection of Park Drive and Brookline Avenue; also the meeting point of the Riverway and the Back Bay Fens, two links of the Emerald Necklace park system designed in the 19th century by Frederick Law Olmsted. It is one of the tallest buildings in its vicinity, and viewers on top of the tower can see the Charles River, Cambridge, and the Great Blue Hill in Milton.