Durdle Door150Durdle DoorGreen bridge of Wales160Green bridge of WalesCathedrals Beach150Cathedrals BeachGiant's Causeway150Giant's CausewayCastleton Tower150Castleton TowerPictured Rocks National Lakeshore Lake Superior Michigan150Pictured Rocks National Lakeshore Lake Superior MichiganHidden beach, Portugal150Hidden beach, PortugalExternsteine150ExternsteinePewetole Island150Pewetole IslandArizona rock formation180Arizona rock formationRock formation, Norway150Rock formation, NorwayMoeraki Boulders150Moeraki BouldersReed Flute Cave117Reed Flute CaveMoro Rock144Moro RockDruid Arch180Druid ArchPulpit rock150Pulpit rockPamukkale150PamukkaleBryce Canyon126Bryce CanyonFairy chimneys in Turkey180Fairy chimneys in TurkeyGiant's Causeway180Giant's Causeway