These mountains are part of the Zhangye Danxia Landform Geological Park in Gansu, China.
The beautiful mountains are the result of deposit of minerals and red sandstone that occurred over 20 millions of years ago. Layers started forming on top of one another, creating this colorful patterns of the rocks.
2. Mount Roraima, South America
These mountains are considered some of the oldest geological formations on Earth, dating back to some two billion years ago.