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 .
Yumbilla Falls
Yumbilla Falls is the name of a waterfall located near the town of Cuispes, in the northern Peruvian region of Amazonas. It is considered the world's fifth tallest waterfall, becoming internationally known since late 2007 due to a geographical survey conducted by the Geographical Institute of Peru (IGN).