Giant's Causeway in Northern Ireland formed ~60 million years ago from cooling lava. The Wave in Arizona, USA, is Navajo Sandstone from the Jurassic period. Moeraki Boulders in New Zealand formed ~60 ...
A hiker walks on a rock formation known as The Wave in the Vermilion Cliffs National Monument in Arizona in 2013. A 49-year-old Belgium man has died in an apparent heat-related death while hiking a ...