Going Forth By Day, 1992. Photography: Mathias Schormann.
When the Guggenheim Bilbao first opened its doors on 19 October 1997, it presented an ambitious 300-piece survey of 20th-century art. One such work was Bill Viola's The Messenger (1996), a looped video installation in which a naked man slowly materialises from a vat of electric blue water. Upon surfacing, he takes a breath, only to descend again and dissolve into a similar state.