667 Madison Avenue Hartz Mountain, Inc. New York, New York This 25-story, 236,000-sf building marks the transition between commercial Midtown and the residential Upper East Side.  Its stone detailing recalls New York’s great 1920s skyscrapers.  The triple-height storefront windows have revolutionized retail display in New York.  Named “Best of the Year” by The New York Times, 667 Madison is – according to the AIA Guide to New York City – a “vigorous yet carefully controlled design that gracefully turns a corner within the complex rules of the Zoning Resolution.”