Introduction to the Exhibition Hall for the Protection of the Imperial Mausoleum Waizang Pit Site: The Waizang Pit is an important part of the Imperial Mausoleum Cemetery, with a total of 81 pits surrounding the imperial mausoleum. The Imperial Mausoleum Waizang Pit Site Protection Exhibition Hall is a fully underground building built on 10 exterior pits in the northeast of the Imperial Mausoleum. It is the world's first fully underground heritage museum built using advanced cultural relics protection technology. The hollow electroplated electric-heated glass curtain walls and passages in the museum separate cultural relics and tourists into two completely different temperature and humidity environments. Under the premise of maximizing the scientific protection of cultural relics, tourists can get up close and personal in a mysterious environment. , appreciate a large number of cultural relics from multiple angles, appreciate world-class cultural relic protection technology and display methods, and understand the latest achievements in the archaeological excavation, protection and utilization of cultural relics. In addition, the phantom imaging program uses internationally advanced film and television imaging technology to interpret real historical events of that year, traveling through time and space, bringing visitors' thoughts back to the colorful palace life of the Western Han emperors.