This photo makes my heart race...
A cat balances on a balcony railing 17 storeys high above the Chilean capital, Santiago. Ivo Berg was visiting a friend when he took the photograph. He said: "As soon as I got to my friend's apartment I fell in love with the view but I was also very worried about the suicidal behaviour of his two cats. They would chase each other through the apartment, fighting and playing. But they would also jump on to the balcony and the railing. I was afraid that they could fall, but my friend told me that he tried stopping them from doing it several times, but that they wouldn't."
Picture: Ivo Berg/ Crazy Ivory/solent