LONDON, ENGLAND - OCTOBER 03: A woman experiences the 'Rain Room' art installation by 'Random International' in The Curve at the Barbican Centre on October 3, 2012 in London, England. The 'Rain Room' is a 100 square meter field of falling water which visitors are invited to walk into with sensors detecting where the visitor are standing. The installation opens to the public on October 4, 2012 and runs until March 3, 2013. (Photo by Oli Scarff/Getty Images)