Yellowstone National Park
Yellowstone National Park has one of the world's largest petrified forests, trees which were long ago buried by ash and soil and transformed from wood to mineral materials. This ash and other volcanic debris are believed to have come from the park area itself as the central part of Yellowstone is the massive caldera of a supervolcano. The park contains 290 waterfalls of at least , the highest being the Lower Falls of the Yellowstone River at .
Tres Hermanas Falls
Tres Hermanas Falls (Spanish for Three Sisters) is reportedly the third tallest waterfall in the world, with a height of . It is located inside Otishi National Park, near the northern fork of the Cutivireni River, in the Peruvian region of Junin.