A photo taken from behind the Vajont Dam in Italy, where nearly 10 billion cubic feet of mountainside came to rest after crashing into a 600-foot-deep reservoir in 1963. Trees and other vegetation ...

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which created a tsunami more than 800 feet tall that came crashing over the Vajont Dam, devastating the nearby village of Casso, Italy. Disclaimer: AAAS and EurekAlert! are not responsible for the ...