Honmaru Goten (Kawagoe Castle)

Honmaru Goten (本丸御殿) is the only surviving structure of the former Kawagoe Castle and offers a rare glimpse into Japan’s feudal past. Built in 1848, this elegant building served as both the residence and administrative office of the domain’s feudal lord. Inside, visitors can explore spacious tatami-mat rooms, admire a peaceful inner garden, and view exhibits that highlight samurai-era life and culture. A standout feature is the lifelike display of a lord and his vassals in discussion, inviting guests to imagine the daily life and decision-making within the castle’s walls.

Kawagoe Castle itself dates back to 1457 and rose in strategic importance during the Edo Period, particularly after Tokugawa Ieyasu entrusted its governance to loyal allies. As a key stronghold, it played a central role in defending the capital and supporting regional administration and trade. Over the course of the Edo Period, 21 lords—each loyal to the Tokugawa Shogunate—ruled from Kawagoe. Today, Honmaru Goten stands as a rare, well-preserved remnant of that era and is one of the few remaining castle buildings in eastern Japan open to the public.