Frank Lloyd Wright designed the Johnson Wax offices as a forest open to the sky

Mushroom-shaped columns, pyrex skylights and earthy colored furnishings feature in Frank Lloyd Wright's Johnson Wax Headquarters, which is next in our series of the architect's most important projects, celebrating the 150th anniversary of his birth last week.

The Johnson Wax Headquarters – also known as the Johnson Wax Administration Building – was completed between 1936 and 1939 in Racine, Wisconsin. It provided the main office for SC Johnson & Son, an American manufacturer of household cleaning supplies.

Despite its location on an industrial park, Wright designed the building in his organic architecture style with references to natural forms. This is exemplified in the main open-plan office space, which is often described as forest-like.

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