A step inside "14 Rooms"

The oldest trade fair hall in Basel has been transformed by the architects Herzog & de Meuron into an art space subdivided into 14 rooms. From the foyer, they are nearly indistinguishable, down to their doorknobs, but inside each there is a unique work of performance art. For the ­curatorial heavyweights Hans Ulrich Obrist and Klaus Biesenbach, each room contains “a living sculpture where the ­sculptures go home at night”. All photos by David Owens.