Roxbury Heritage State Park is a history-themed heritage park in the oldest part of Roxbury, a former town annexed in 1868 by Boston, Massachusetts. It is anchored by the Dillaway–Thomas House, a large colonial structure built in 1750 and thought to be the oldest surviving house in Roxbury. The location includes an adjacent 1-acre (0.40 ha) landscaped park with views of the Boston skyline, and is part of the Metropolitan Park System of Greater Boston.