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Carnegie Hill is a neighborhood within the Upper East Side of Manhattan in New York City. Roughly speaking, it is bounded by 86th St. on the south, Third Avenue on the east, 98th St. (i.e., Spanish Harlem) on the north, and Fifth Avenue (i.e., Central Park) on the west.
The neighborhood is named for the mansion that Andrew Carnegie built at Fifth Avenue and 91st St. in 1901. The mansion is today the Cooper-Hewitt, National Design Museum, a branch of the Smithsonian Institution