 For many years the building had a distinctive feature of a T-shaped atrium walk-through open to the sidewalks on 52nd Street, 53rd Street and Fifth Avenue with glass storefronts inside the walk-through.This included a bookstore and an Alitalia ticket office designed by Gio Ponti.Tishman Realty dissolved in 1976 and the building was sold for $80 million (about $ million in ).