4. The Dabona cemetery in Xiangyun County, Yunnan. Dating back to more than 2,000 years ago, the tomb group provides a glance at the Kunming Kingdom, the most powerful local administration in Yunnan at that time.

More than 280 pieces of artifacts made of bronze, iron, tin, ceramic, stone and wood, including weapons such as a sword and spear, were excavated. The site is important for understanding the bronze culture around the Erhai Lake area. [Photo/Xinhua]