Ghost Outfit

The 2012 Serpentine Gallery Pavilion, by Herzog & de Meuron and Ai Weiwei. The architects decided to make their pavilion a kind of palimpsest: they dug down to the groundwater, formed the contours of a space from the remnants of the previous eleven pavilions, and covered it with a quite literal “water table” — a large concrete sheet holding a few inches of water. Underneath, the pavilion has a rich, soil-like smell, probably from the cork lining its surfaces; the fungal shapes of the little (toad?) stools add to the immersive underground feeling.