The Cooper–Hewitt, National Design Museum is a design museum located in New York, New York. It is one of nineteen museums that falls under the wing of the Smithsonian Institution and is one of two Smithsonian museums located in New York City. It is the only museum in the United States devoted to historical and contemporary design. Its collections and exhibitions explore approximately 240 years of design aesthetic and creativity. The museum has one of the world’s largest collections of decorative arts.