Macy's Herald Square, originally known as the R. H. Macy and Company Store, is the flagship of Macy's department stores, located on Herald Square in Manhattan, New York City. The building's 2.2 million square feet (almost 205,000 square meters) has made it the world's second largest department store. As of 2016, the store has stood at the site for 115 years. The building was added to the National Register of Historic Places as a National Historic Landmark in 1978.