Levi's headquarters are covered with 25k pairs of jeans

The Levi Strauss & Co headquarters in San Francisco are covered with 25,500 pairs of jeans on the walls in the form of recycled-denim insulation. The building has been accredited by the Leadership in Energy and Environmental Design program as being environment-friendly. The company has also created a $100,000 denim insulation fund to help organisations make their buildings eco-friendly.