In the northwestern Gansu province of China lies the Zhangye Danxia Landform Geological Park, a gorgeous expanse of land known for its rainbow-colored rock formations. Bands of fiery red, creamy orange, rich green, and bright yellow streak across the mountains, forming the most beautiful geological layer cake we have ever seen.
Bucketlist: Danxia Landform Geological Park in Gansu, China. The rainbow mountains became a UNESCO World Heritage Site in 2010. The colors are the result of mineral deposits and red sandstone from over 24 million years ago.