Construction is complete on the steel and glass garden canopy at 550 Madison Avenue, a 684-foot-tall landmarked skyscraper in Midtown East. The triple-height framework is designed by Snøhetta with AECOM Tishman as the general contractor, and is part of a 21,000-square-foot indoor-outdoor renovation of the 38-year-old postmodern office building by The Olayan […]