Pictures of the day: 13 April 2012 A lone climber balances precariously at the summit of an enormous rock with his head almost in the clouds as he takes in the breath-taking views in Vratca, Bulgaria. The moment was captured by amateur photographer, Veselin Malinov, who said he was astonished to see the man all by himself balancing on the edge of the rock.Picture: VESELIN MALINOV / CATERS NEWS