Samdrup from the Lhasa Martyr Cemetery offers colorful wheat head to the martyr tombs without names, photo from Xinhua, April 5.

Photo from Tibetculture.net

The Chinese Qingming Festival, also known as Tomb-sweeping Day that falls on April 5, a day for the Chinese to remember and honour one's ancestors. There are 830 martyrs buried at the Lhasa Martyr Cemetery including 330 unknown martyrs who have sacrificed to the construction and revolution of Tibet.