Himeji Castle (姫路城 Himeji-jō?) is a flatland-mountain Japanese castle complex located in Himeji in Hyōgo Prefecture and comprising 83 wooden buildings. It is occasionally known as Hakurojō or Shirasagijō ("White Heron Castle") because of its brilliant white exterior.
It was registered as the first Japanese National Cultural Treasure by UNESCO World Heritage Site and a Japanese National Cultural Treasure in December, 1993. Along with Matsumoto Castle and Kumamoto Castle, it is one of Japan's "Three Famous Castles", and is the most visited castle in Japan.