"Hirado Castle in Kyushu, Japan, originally built by warlord Shigenobu Matsura in 1599, offers a unique experience with a solitary suite in the Kaiju Yagura Turret. Guests gain exclusive access to the on-site museum and castle grounds, and can enjoy chef-prepared meals in a suite adorned with local materials and art. Activities include martial arts lessons, a 17th-century warrior tea ceremony, and the Hirado Kagura dance. Prices start at $5,500 per night, plus a $400 daily meal fee per person."