'Escalatoring' . The escalator are used to connect the Seoul city with the world downside with 11 underground railways. It is a second city with their shops. Maybe during the wars may be use to protect citizens... someone told me. A second life underground the city. . . . #escalators #secondworldunderground #undergroundworld #stepbystepunderground (presso 내방역) https://www.instagram.com/p/B1AKRzunITa/?igshid=xo8t9hqa0m43










