Castle

Introducing the knowledge, history, and culture of Japanese castles.

Masugata Koguchi Explained: How Japanese Castles Used Structure as a Weapon

Masugata koguchi is a square-shaped gate defense found at Japanese castle entrances. Learn how this "ultimate gate" structure slowed enemies and enabled attacks from three sides.

Japanese history and culture

Castle
Yagura-mon: The Tower Gate That Defined Japanese Castle Defense

A yagura-mon is a tower gate with a turret built above the entrance—the most prestigious gate in Japanese castles. Learn its structure with examples from Himeji, Obi, Kanazawa, and Edo castles.

Japanese history and culture

Castle

Japanese castle
Japanese Castle Types Explained: 5 Categories Based on Terrain

Japanese castles are classified into five major types based on their surrounding terrain: Hirajiro (flatland castles), Hirayamajiro (hilltop castles), Yamajiro (mountain castles), Mizujiro (coastal water castles), and Kojo (lake castles). This guide explains their characteristics and notable examples.

Japanese history and culture

Castle

Japanese castle
Japan's Three Great Flatland Castles
The 12 Original Castles in Japan Explained: The Only Surviving Castle Towers from Ancient Japan

Discover the 12 Original Castles in Japan that have survived since the pre-Edo period without major reconstruction. These authentic castle towers are living history and national treasures.

Japanese history and culture

Castle

Japanese castle
Twelve Original Castles
The Day Japanese Castles Disappeared: How Japan Lost Its Fortresses to the Meiji Government

Discover why most Japanese castles vanished after the Meiji Restoration. Learn about the Castle Abolition Order and the efforts to preserve Japan’s historic fortresses.

Japanese history and culture

Castle

Japanese castle
Otemon: The Ultimate Fusion of Symbolism and Defense in Japanese Castles

The Otemon Gate in Japanese castles serves as both the main entrance and a crucial defensive structure. Learn about its architecture, historical evolution, and significance.

Japanese history and culture

Castle