Plitvice Lakes National Park

By far Croatia's top natural attraction and the absolute highlight of Croatia's Adriatic hinterland, this glorious expanse of forested hills and turquoise lakes is exquisitely scenic – so much so that in 1979 Unesco proclaimed it a World Heritage Site. The name is slightly misleading though, as it's not so much the lakes that are the attraction here but the hundreds of waterfalls that link them. It's as though Croatia decided to gather all its waterfalls in one place and charge admission to view them.