Shinjuku Gyoen National Garden blends formal, landscape, and Japanese garden styles, evolving from a feudal estate into a Meiji-era imperial garden and today’s serene urban oasis.

Kobotoke Checkpoint Ruins mark a former Koshu Kaido checkpoint, once strictly guarded to control travel, now preserving relics and a historic mountain-road atmosphere.

Shinagawa Shrine traces its origins to Tokugawa Ieyasu’s prayers for victory, preserving early Edo offerings. Facing 21st-century Tokyo, it is a rare place where history and the present intersect.