8. Yellowstone – Idaho (USA)
Spanning an area of 3,472 square miles, the Yellowstone National Park is an amazing wonder for the special features that the park possesses. The Yellowstone Lake is centered over the largest super volcano, the Yellowstone Caldera. The Lake is amongst the largest high-altitude lakes in North America. The area is known for the ongoing geothermal processes going on giving ample material to study.