Steinway Mansion or Steinway House is a historic home located on a one acre hilltop in Astoria, Queens, New York City. It was built in 1858, originally on 440 acres (1.8 km2) on the Long Island Sound, by Benjamin Pike, jr., born in 1809, a noted manufacturer of scientific instruments located in lower Manhattan. After his death in 1864, his widow sold the Mansion to William Steinway of Steinway & Sons in 1870. Jack Halberian purchased the Mansion in 1926 and upon his death in 1976, his son Michael Halberian began an extensive restoration. The house has been for sale since his death in 2010. It was landmarked by the City of New York in 1966. Architect unknown. It was listed on the National Register of Historic Places in 1983.
The Steinway Mansion is a large Italianate Villa style dwelling. It is constructed of granite and bluestone with cast iron ornamentation and has a two story, "T" shaped central section, with a slate covered gable roof. It has a one story library wing with large bay windows. It features a four story tower topped by a balustrade and octagonal cupola. There are three porches supported by cast ironCorinthian order columns. There are five Italian marble fireplaces, pocket doors that hold original cut glass depicting many of Pike's 19th century scientific instruments. The center main hall contains elaborate carved walnut balustrades, a two story domed rotunda topped with a central stained glass skylight. 12-foot (3.7 m) ceilings throughout. There are three large underground cisterns designed to collect rain water from the roof for grounds irrigation and a 1000-gallon (3,800 l) copper tank in the attic to furnish the house with a pressurized water system for bath and kitchen use. In 2006, a documentary film titled "The Steinway Mansion" was produced and includes extensive interviews with Michael Halberian and Henry Steinway and many rare photos. It is located at 18-33 41st St, Astoria, NY.