Nakasendo was the old mountain road connecting Edo, today's Tokyo, to Kyoto. The 530-kilometer stretch of road was dotted with 69 post towns. Our reporter, JJ, walks along a preserved section of the Nakasendo and stops at Tsumago, a beautifully restored post town. He spends the night at a venerable inn and meets people who treasure a traditional way of life. This edition of Journeys in Japan features a walk back in time along an Edo era road.