Somewhere between Takadanobaba and Ueno Stations

(Dad pondering the subway map)

Tokyo is home to the most extensive rapid transit system in the world and it is INCREDIBLE. Every train is EXACTLY on time and the stations and trains are immaculately clean. Though Sri Lankan buses didn't share the immaculateness and packed in three or four times the capacity into the bus they were also always on time. So according to me, both Sri Lanka and Japan's public transportation systems have the San Francisco MUNI beat by a long shot. Get it together SF.