We were watching Artland the other night and they visited this amazing museum and gallery in San Francisco's Golden Gate Bridge Park. It is clad in perforated copper sheets that the architects Herzog de Meuron based on digital photographs of light through tree branches. The copper is untreated so its surface patination will change over time eventually turning green.
Herzog de Meuron also designed the Birds Nest Olympic Stadium in Beijing which we also love.
photo: thomas mayer