A visitor is seen by her reflection as she poses on Argentine artist Leonardo Erlich's optical illusion...
A visitor is seen by her reflection (top) as she poses on Argentine artist Leonardo Erlich's optical illusion installation "Dalston House" in east London June 25, 2013. The artwork, commissioned by the Barbican Gallery, uses mirrors to create the impression of a house on which people can play and pose for visual effect. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY)