KML is from Wikidata Tremont Street is a major thoroughfare in Boston, Massachusetts. Tremont Street begins at Government Center in Boston's city center as a continuation of Cambridge Street, and forms the eastern edge of Boston Common. Continuing in a roughly southwesterly direction, it passes through Boston's Theater District, crosses the Massachusetts Turnpike, and becomes a broad boulevard in the South End neighborhood. It then turns to the west as a narrower four-lane street, running through Mission Hill and terminating at Brigham Circle, where it intersects Huntington Avenue. The street name zigzags across several physical roads, often requiring a sharp turn to remain on the street, as a result of changes made to the street grid during urban renewal.