Natural erosion
The Mesa Arch is a symbol of the canyonland
Moab,United StatesThe contact area between the bottom and the rocks is very small
Huangshan,ChinaThe amount of water in this waterfall is very large
Jasper National Park,CanadaThere are several large flat stones in the scenic spot
Koh Samui,ThailandThe scenery at the mountain top is good
Petra,Jordan1