A reporter walks through a piece titled “Helmets” by Yoko Ono at the Serpentine Gallery in London. The work makes up part of London 2012 Festival, a 12-week celebration of artists’ work from across the world.
(Photo by Dan Kitwood/Getty Images)

A reporter walks through a piece titled “Helmets” by Yoko Ono at the Serpentine Gallery in London. The work makes up part of London 2012 Festival, a 12-week celebration of artists’ work from across the world.

(Photo by Dan Kitwood/Getty Images)