The Helmsley Building is a 35-story building at 230 Park Avenue between East 45th and 46th streets in Midtown Manhattan, just north of Grand Central Terminal in New York City. It was built in 1929 as the New York Central Building and was designed by Warren & Wetmore in the Beaux-Arts style. It was the tallest structure in the "Terminal City" complex around Grand Central prior to the completion of what is now the MetLife Building.Located to the north of Grand Central Terminal, this building was the center of a series of hotels and office buildings sponsored by the New York Central Railroad. Once visible for miles away along Park Avenue, this building served as a powerful reminder of the dominance of railroads in the era.