Escalators are used around the world in places where elevators would be impractical. Principal areas of usage include department stores, shopping malls, airports, transit systems (railway/railroad stations), convention centers, hotels, arenas, stadiums, and public buildings. An escalator is a vertical transportation device in the form of a moving staircase – a conveyor that carries people between floors of a building. Like vending machines, canned coffee, and convenience stores, escalators seem to be ubiquitous in modern Japan. This is especially true in Tokyo, with its many multi-storied buildings with basements, and if you take public transportation, as you descend (and ascend) ...