Duyun Tian Yan Scenic Area is located in Pingtang County, Qiannan Buyi and Miao Autonomous Prefecture, Guizhou Province. It is the nickname of the 500-meter spherical radio telescope (FAST). It is located in Shannan, Miao Ling, Qiannan Buyi and Miao Autonomous Prefecture. It is the largest single-aperture spherical radio telescope in the world, and it is also designed and manufactured by China.

Tian Yan Scenic Area in Duyun has a forest coverage rate of 46.2%, which is a garden city integrating mountains, water, bridges and gardens. There are 35 ethnic groups living here, including Han, Buyi, Shui and Dong, with rich national culture.

In addition to Duyun Tian Yan Scenic Area, Pingtang County in Qiannan Prefecture has other tourist attractions, such as Kedu Town, Zhang Bu Scenic Area, Jiacha Scenic Area and Daan Town.