10. Plitvice Lakes National Park in Croatia
Plitvice Lakes National Park is one of the oldest parks in Southeast Europe. It is located in a mountainous area of central Croatia. The park is famous for the 16 crystalline lakes which are arranged in cascades. The water of the largest lake flows down and breaks into other lower pools forming hundreds of separate wall falls. The turquoise water with a touch of green foliage makes the whole Plitvice Lakes National park mesmerizing to all the tourists across the world.