The Cooper-Hewitt

That building was the mansion of the rich industrial Andrew Carnegie, built it in 1899, for his family. But was transformed in a museum by the granddaughters of another industrialist, Peter Cooper, a few years later. Amy, Eleanor and Sarah Hewitt pursued all the styles through Europe to collect different elements of design.
The building is dedicated to design and it's part of Smithsonian since 1967.

Some of these photos are from the permanent collection. We can see the different areas of design: graphic design, fashion, architecture, industrial design and furniture.