HONG KONG: Few travelers to Hong Kong can imagine what it's like to live in this city, which both excites and exhausts with its intensity. One simple way of experiencing that limitless energy is to take a ride on the Central-Mid-levels Escalator. Far more than just a transport system, the escalator guides the visitor with a few hours to spare on a sensory discovery of a constantly changing cityscape. It is a passage through the traditional and the trendy, the swank and the slightly seedy. And it is an encounter with people from all walks of life.