Over 2,000-yr-old wooden well unearthed in China's Shanxi

A large number of wooden slabs and fragments were also found in the well, leading to the speculation that railings and a pavilion were in place above the well at the time.

"The nine-sided structure is quite peculiar, and the masonry technology was exquisite. Its discovery is of great significance to the masonry technology of ancient wells and research of early wooden structures," said Zheng Haiwei, deputy director of Yangquan's heritage management center.