Staff turn away tourists from the Acropolis in Athens as Greece shuts its archaeological sites during the hottest hours of the day due to a new heatwave. The Acropolis, a World Heritage Site, is currently experiencing a surge in visitor numbers and had already closed last weekend during the hottest hours. Greece is preparing for further high temperatures until Sunday, with peaks of 43 degrees Celsius (109 degrees Fahrenheit) expected in the centre of the country on Thursday. IMAGES