Cool Japan’s facebook attracts a huge number of visitors worldwide whenever it uploads pictures of Japanese castles which tells how much interest foreigners have on them. Found at Hikone castle under its beautiful curvaceous ornamental roof were numerous measures taken for military purposes. Kumamoto castle was using traditional methods for the currently undertaking reconstruction to commemorate its 400th anniversary. The program will also introduce an American captivated by the appeals of Japanese castles who visits castles in Japan and posts information of its history and characteristics with photos on his blog.