Cooper-Hewitt, National Design Museum is a branch of the Smithsonian and is housed in the former mansion of Andrew Carnegie. The building received landmark status and reopened as the Cooper-Hewitt National Design Museum in 1976. It was the first private residence in the US to have a structural steel frame and one of the first in New York to have a residential Otis passenger elevator. Cooper-Hewitt, National Design Museum is the only museum in the nation devoted exclusively to historic and contemporary design. Cooper-Hewitt’s collections include more than 250,000 design objects and a world-class design library. Located on the upper east side of New York City is part of “Museum Mile”.

Hours:
Monday–Thursday: 10 a.m.–5 p.m.
Friday: 10 a.m.–9 p.m.
Saturday: 10 a.m.–6 p.m.
Sunday: Noon–6 p.m.
Garden entrance on 90th Street open May–September (weather permitting)
Closed Thanksgiving Day, Christmas Day, and New Year’s Day