Japanese castles, known as "城" (shiro) or "城跡" (jōseki) in Japanese, have a rich history dating back to the feudal era. These castles served as military fortresses, administrative centers, and symbols of power for feudal lords (daimyo) and shoguns. Japanese castles are renowned for their unique architecture, incorporating defensive features such as moats, walls, and strategic layouts. Traditional Japanese castles are made primarily of wood and stone, featuring multiple stories with elegant roofs and ornate decorations. They often boast beautiful gardens and scenic views, making them popular tourist attractions. Some famous Japanese castles include Himeji Castle in Hyogo Prefecture, often regarded as Japan's most beautiful castle, and Matsumoto Castle in Nagano Prefecture, known for its unique black exterior. These castles, along with many others across Japan, offer visitors a glimpse into the country's feudal history and architectural marvels.