Takamatsu Castle

Takamatsu Castle, also known as Tamamo Castle, is a historic fortress located in central Takamatsu, Kagawa Prefecture, on the island of Shikoku, Japan. Constructed in 1588 by the warlord Ikoma Chikamasa following the conquest of Shikoku by Toyotomi Hideyoshi, the structure exemplifies Azuchi-Momoyama architectural style. Its most distinctive feature is the use of seawater from the Seto Inland Sea to fill its moats, a rare design shared by only two other castles in Japan: Imabari and Nakatsu. This unique engineering served both defensive purposes and economic strategy, ensuring control over vital sea lanes against rival clans on the opposite shores of Honshu during the turbulent Sengoku period.

The castle served as the headquarters for the Takamatsu Domain for nearly three centuries, initially under the Ikoma clan until 1640, and subsequently under the Matsudaira clan until the Meiji Restoration in 1869. Although the main keep and most structures were demolished in 1874, the site retains significant historical value today. Designated as a National Historic Site, an Important Cultural Property, and a National Place of Scenic Beauty, the grounds now function as Tamamo Park. Visitors can still view original ruins, including one gate and three surviving yagura towers, which stand as testaments to its former grandeur.

Currently, the location serves as a public park and archaeological site, preserving the memory of eastern Sanuki Province's feudal history. While the vast majority of the original 660,000 square meter complex has been reduced to a 79,587 square meter area, the remaining structures offer insight into Japanese military architecture. The site remains a popular destination for those interested in the region's strategic past, combining natural beauty with cultural heritage in the heart of modern Takamatsu city.