In 2005, Vornado completed a creative redevelopment of this boutique wedding-cake-style building across from Rockefeller Center on Fifth Avenue and 51st Street. To fully realize the value of the building's air rights, a 35,000-square-foot glass "jewel box" tower designed by Kohn Pedersen Fox Associates was added, maximizing views of Rockefeller Center's Channel Gardens and St. Patrick's Cathedral. The development comprises floor-to-ceiling glass walls and column-free space on tower floors, plus a sleek, modern lobby that features an Amses Cosma glass wall sculpture.