This, boys and girls, is the world's shortest escalator. It's located inside More's department store in Kawasaki, Japan.
Sidebar: According to Wiki, "[t]he actual act of riding it takes perhaps 2-3 seconds so you can easily sandwich this into a daytrip somewhere else. The legend varies considerably as to just why this thing exists, especially considering it is placed between two sets of stairs making it pointless even for the disabled. The popular version states that they simply ran out of cash and ceased construction after the 7 or so metallic steps were made. Local drunks may tell you tales of a child dying there. Perhaps more plausible is that they simply messed up the measurements? You decide."