Narai-juku, a charming post town on the Nakasendo Trail in Nagano, offers a glimpse into Japan's past with its well-preserved samurai-era atmosphere. Stroll down the historic main street lined with traditional wooden buildings, visit the Nakamura Residence to see how merchants lived in the 1800s, and explore the temples and shrines that add to the town's nostalgic charm. Don't miss the opportunity to walk a section of the Nakasendo Trail from Narai to Yabuhara for a scenic adventure back in time.