large spread out cities are a problem. in beijing or any other large chinese city you can't go anywhere with public transport without spending an hour travelin

large spread out cities are a problem. in beijing or any other large chinese city you can't go anywhere with public transport without spending an hour traveling from home, and any two interesting places are at least half an hour away from each other. in vienna i can cross the greater part of the city in half an hour and most places of interest are within less than 15 minutes from each other.