<Tr> <Th> Added to NRHP </Th> <Td> June 2, 1978 </Td> </Tr> <Tr> <Th> Designated NHL </Th> <Td> June 2, 1978 </Td> </Tr> <P> Macy's Herald Square (originally named the R.H. Macy and Company Store) is the flagship of the Macy's department store chain; it is located on Herald Square in Manhattan, New York City . The building's 2.5 million square feet (232,257.6 m), which includes 1.25 million square feet (116,128.8 m) of retail space, makes it the largest department store in the United States and the second largest in the world . As of 2018, the store has stood at the site for 116 years . </P> <P> The building was added to the National Register of Historic Places as a National Historic Landmark in 1978 . </P>

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