The area south of Union Square is one of New York’s main centers of cast iron architecture, from some of its earliest surviving fully cast-iron buildings to predominantly masonry buildings with distinctive and elaborate cast iron ground floors or ornament. Click here to send a letter supporting landmark designation of these and other historic buildings south of Union Square.

A look at some of the architecturally, historically, and culturally significant buildings once located in this area. Click here to send a letter supporting landmark designation of extant historic buildings south of Union Square.

This is currently an outdoor recreation area owned by Grace Church School.

Known as Stewart House, this 21-story mid-century modern apartment building was constructed in 1960 and designed by Robert and Sylvan Bien. This structure occupies the entire block, previously occupied by the A.T. Stewart Department Store, built in 1862. Go back and click on the tours the building is featured in for additional information and history.