A girl runs past an art installation depicting a shark at the Museum of Optical Illusions in St. Petersburg

A girl runs past an art installation depicting a shark at the Museum of Optical Illusions in St. Petersburg

A girl runs past an art installation depicting a shark at the Museum of Optical Illusions in St. Petersburg October 7, 2014. The museum offers visitors a chance to become involved in their 3D installations, according to local media. REUTERS/Alexander Demianchuk (RUSSIA – Tags: SOCIETY TPX IMAGES OF THE DAY)