Visitors JAKe and Emma Hayley pose on Argentine artist Leonardo Erlich’s «Dalston House» at Dalston in east London

Visitors JAKe and Emma Hayley pose 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 TPX IMAGES OF THE DAY)