I decided that I would never forgive myself to stay in Japan for six weeks and not take the bullet train or visit Tokyo. So I did both and spend nine days in the biggest metropolitan area in the world!
Yikes!!! This is the metro transit map. Intimidating even to this seasoned traveler. But in reality, it only took a day or so to get relatively comfortable with getting around. Everything is well signed in English and the Japanese are super efficient in their planning. The bigger challenge was avoiding being run over by people in the train stations! More crowded than in Mumbai and wow, people are in a hurry here!