April 18 marks World Heritage Day. The city of Xi'an is home to six UNESCO-listed heritage sites. One of them is the legendary Terracotta Warriors, which were made during the Qin Dynasty over 2,000 years ago. Every day, thousands flock to Xi'an to witness the awe-inspiring Terracotta Warriors – life-sized clay soldiers that have stood guard for centuries. Follow us to the restoration labs – literally, "hospitals for the Terracotta Warriors." Experts are not just preserving history – they're decoding it. This is heritage conservation – where ancient meets cutting-edge.