A leading gallery has pushed the boundaries of visual art with an exhibition of works which cannot be seen. London’s Hayward Gallery has gathered together 50 “invisible” works by leading figures such as Andy Warhol, Yves Klein and Yoko Ono for its display of works you cannot actually see. It is thought to be the first such exhibition staged at a major institution in the UK. Gallery bosses say the £8 a head exhibition demonstrates how art is about “firing the imagination”, rather than simply viewing objects. Invisible: Art about the Unseen 1957 - 2012 opened on June 12.
