'Alien Valley' a hit in Gansu(1/6)

An aerial photo taken Monday after rainfall captures the Alien Valley Star Geological Park in Sunan county, Zhangye, Northwest China's Gansu Province. (Photo by Wang Jiang/for chinadaily.com.cn)

A geological known as "Alien Valley" in Sunan county in Zhangye, Northwest China's Gansu province, is gaining popularity for its spectacular landforms.

An aerial photo taken Monday after rainfall captures the Alien Valley Star Geological Park in Sunan county, Zhangye, Northwest China's Gansu Province. (Photo by Wang Jiang/for chinadaily.com.cn)

An aerial photo taken Monday after rainfall captures the Alien Valley Star Geological Park in Sunan county, Zhangye, Northwest China's Gansu Province. (Photo by Wang Jiang/for chinadaily.com.cn)

An aerial photo taken Monday after rainfall captures the Alien Valley Star Geological Park in Sunan county, Zhangye, Northwest China's Gansu Province. (Photo by Wang Jiang/for chinadaily.com.cn)

An aerial photo taken Monday after rainfall captures the Alien Valley Star Geological Park in Sunan county, Zhangye, Northwest China's Gansu Province. (Photo by Wang Jiang/for chinadaily.com.cn)

An aerial photo taken Monday after rainfall captures the Alien Valley Star Geological Park in Sunan county, Zhangye, Northwest China's Gansu Province. (Photo by Wang Jiang/for chinadaily.com.cn)