Have you eve seen a canyon so beautiful? Fjaðrárgljúfur is a canyon in south east Iceland that's known for its breathtaking beauty. It's up to 330 feet deep and about one-and-a-quarter kilometers long, with a river called Fjaðrá flowing through it.
10 Geological Wonders you don't know A red-rock stunner on the border of Arizona and Utah, The Wave is made of sand dunes that have turned to rock. This little-known formation is accessible only on foot via a three-mile hike and highly regulated.