Previous slideNext slide Humanoid robot Gabi takes part in a Buddhist monk ordination ceremony at a temple in Seoul, South Korea. ReutersInfo Street artist Oscar Giraldo performs with his pets, a cat called Pereza and a rat called Luciana, on a street in Ibague, Tolima, Colombia. AFPInfo Artist Oriol Vilanova, left, with his piece Los Restos on display during a preview of the 61st Venice Biennale, which runs from May 9 to November 22.