Iiyama Castle

About

Iiyama Castle (Iiyama-jō) was a hirayama-style Japanese castle located in what is now part of the city of Iiyama, Nagano prefecture. It was the headquarters for Iiyama Domain under the Edo period Tokugawa Shogunate and its ruins are now a public park.

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.