The Ruth E. Wittenberg Triangle is a traffic triangle located at the intersection of Greenwich Avenue, Sixth Avenue, and Christopher Street in Manhattan,.
This public plaza, maintained by the Village Alliance, in the shape of a triangle is named after Brooklyn native Ruth Wittenberg, born in 1899.
Ruth Wittenberg (1899-1990) was an American activist and historic preservationist who advocated for the preservation of historic buildings in New York City's Greenwich Village.She was a leading figure in the successful movement to designate Greenwich Village a historic district.