LONGARONE, ITALY - SEPTEMBER 26:  The Vajont dam is seen behind of an old photo of Longarone on September 26, 2013 in Longarone, Italy. The Vajont Dam tragedy happened on the night of the October 9, 1963, when a landslide broke away from Monte Toc and fell into the Vajont River, causing a wave that struck the neighboring towns and killing more than 2000 people.  (Photo by Marco Secchi/Getty Images)