PLITVICKA JEZERA, CROATIA - JULY 06: A general view of the Big Waterfall (Veliki Slap) at Plitvice Lakes National Park on July 6, 2015 near Plitvicka Jezera, Croatia. Plitvice Lakes National Park is Croatia's largest national park and is listed as a UNESCO World Heritage site. It is a popular tourist destination for its waterfalls and turquoise coloured lakes. (Photo by Matej Divizna/Getty Images)
