Plitvice Lakes National Park in Croatia is something similar to the Grand Canyon. The big difference is that instead of red-colored picturesque rocks, you will find bright green moss lining the sides of the beautiful lakes. The park is comprised of 16 large lakes at various levels of elevation, each formed by runoff from the lakes situated above. The lakes are linked by a series of both large and small waterfalls. The color of water varies from crystal clear to azure and turquoise.