Castles in Nagano

Explore the castles of Nagano Prefecture—where mountain strongholds, samurai heritage, and strategic history converge.
Situated in central Japan, Nagano was a vital crossroads for feudal powers during the Sengoku period. From the iconic black walls of Matsumoto Castle to lesser-known ruins hidden in alpine valleys, the region offers a rich journey into the heart of Japan’s medieval warfare and political intrigue.