The stunning Rainbow mountains you see below are part of the Zhangye Danxia Landform Geological Park in China. Layers of different colored sandstone and minerals were pressed together over 24 million years and then buckled up by tectonic plates.
The formations were shaped into the flowing valleys after thousands of years of rain and wind, and the region has been listed as a UNESCO World Heritage site since 2010. The area known as Zhangye Danxia has the greatest gathering of different pigments in natural stone in the world. The colors are the result of mineral deposits and red sandstone from over 24 million years ago, the layers which go on top of each other create the colorful patterns of rock strata you see in the images here.
Photo credits: imaginechina and www.lostateminor. com and Xinhua/Landov/Barcroft Media.