Salar de Uyuni, Bolivia. (Photo: huanqiu.com)

Danxia landform, China. (Photo: huanqiu.com)

Pamukkale, Turkey. (Photo: huanqiu.com)

Dead Vlei, Nambia. (Photo: huanqiu.com)

Lencois Maranhenses, Brazil. (Photo: huanqiu.com)

White Desert, Egypt. (Photo: huanqiu.com)

Kelimutu Crater Lake, Indonesia. (Photo: huanqiu.com)

Zhang Jiajie, China. (Photo: huanqiu.com)

Richat Structure, Mauritania. (Photo: huanqiu.com)

Hutt Lagoon, Australia. (Photo: huanqiu.com)