Keywords: Postal Square Building from Columbus Circle HABS 1989.jpg Main lobby of the Washington DC City Post Office now Postal Square Building ;HABS Caption Looking northwest from southeast corner of Delaware and Massachusetts Avenues showing Union Station and city Post Office Library of Congress Prints and Photograph Division Historic American Buildings Survey HABS http //hdl loc gov/loc pnp/hhh dc0641 DC WASH 587-1 June/July 1989 Ronald N Anderson DC WASH 587-1 LOC-image hhh dc0641 Postal Square Building |