China: Rainbow Mountains
The Rainbow Mountains of China within the Zhangye Danxia Landform Geological Park are a geological wonder of the world. These famous Chinese mountains are known for their otherworldly colors that mimic a rainbow painted over the tops of rolling mountains.
The Zhangye Danxia National Park is located in the Gansu province in China's northwest covering 200 square miles. The site was named a UNESCO World Heritage Site in 2009. It is also one of the 'Top 10 Geographical Wonders of the World' selected by National Geographic. Approximately 24 million years of natural erosion brought out the mountain’s distinct layers and brilliant colors.
The recommended time to visit the Rainbow Mountains is from May to October when the sun is shining as it reflects the vibrant colors off the mountain hills.