Apremont Triangle Historic District is a historic district in Springfield, Massachusetts, located at the junction of Pearl, Hillman, Bridge, and Chestnut Streets in its Metro Center district. The Apremont Triangle Historic District includes the Apremont Triangle Park, nicknamed "the Heart of Springfield" by the city's arts community; the historic, 10-story Kimball Towers Condominiums, (formerly the luxurious Hotel Kimball - "Western Massachusetts' Leading Hotel - built in 1910;) a nine-story historic, former YMCA, which now houses apartments at 122 Chestnut Street, (1915); the six-story Neo-Gothic Tarbell-Waters Building (1923), a former office building that was auctioned in August 2011; the two-story Harris-Green building, a 1920s Rolls Royce showroom, which is, actually, two buildings; a