Introduction to the Central to Mid-Levels Escalator: The Central to Mid-Levels Escalator is the longest outdoor covered escalator in the world, starting from the Central Market in Queen's Road Central and extending to Conduit Road in Mid-Levels. The escalator has multiple exits, and you can go up and down at will. On both sides are the SOHO food area full of exotic squares and the staircase street that has appeared in countless Hong Kong drama scenes.