LONDON, ENGLAND - JUNE 18: A man walks through an installation entitled 'Amaze' by Yoko Ono at the Serpentine Gallery on June 18, 2012 in London, England. The piece makes up part of an exhibition of ... more 

LONDON, ENGLAND - JUNE 18: A man walks through an installation entitled 'Amaze' by Yoko Ono at the Serpentine Gallery on June 18, 2012 in London, England. The piece makes up part of an exhibition of the artists work which is currently on show at the Serpentine Gallery which opens from June 19 until September 9, 2012. The show is part of the London 2012 festival, a twelve week UK wide celebration of artists work from across the world. (Photo by Dan Kitwood/Getty Images) less