Peace Tourism Trail Along the Observatories is a new trail running from the east to the west of the DMZ, permitting encounters with a unique topography and landscape. Through this journey, participants can learn first-hand of the unique culture and potential resources in the border areas. The 15 observatories installed in the DMZ are important bases of activity in each region and places to view the scenery. Each observatory becomes a crucial reference at the border, where different political and cultural environments clash. This exhibition reveals the topological relationship between the observatories, stereoscopically dissecting the landscape and characteristics.