The Waldorf Astoria New York is a luxury hotel and condominium residence in the Midtown Manhattan neighborhood of New York City, United States. The structure, at 301 Park Avenue between 49th and 50th Streets, is a 47-story, 625 ft (191 m) Art Deco landmark designed by architects Schultze and Weaver and completed in 1931. The building was the world's tallest hotel until 1957, when it was surpassed by Moscow's Hotel Ukraina. An icon of glamor and luxury, the Waldorf Astoria is one of the world's most prestigious and best-known hotels. Once owned by Conrad Hilton, Waldorf Astoria Hotels & Resorts, a division of Hilton Hotels, operates under the name of the original hotel in locations around the world. Both the exterior and the interior of the Waldorf Astoria are designated by the New York City Landmarks Preservation Commission as official landmarks.