Jo Khang Lhakhang is a monastery located in Drigu Township, Comai County, Tibet Autonomous Region, near the Drigu River. (Photo/ Xu Na)

Signs of the age (Photo/ Xu Na)

Exquisite decoration of the interior of the monastery (Photo/ Xu Na)

Patterns on the wall (Photo/ Xu Na)

Delicate Tibetan patterns (Photo/ Xu Na)

Prayer flags hanging outside the monastery (Photo/ Xu Na)