Yuanshan Jibao is a military airfield during the Japanese colonial period with aircraft parked in these hangars. And it's also an important underground building during the World War II. The inner of the tunnel exhibition displays the early photos and the latest photos leading the public to recall the old memories. From the overall appearance, it is difficult to imagine that it's a sightseeing spot with many historical stories. Here is a bamboo plane reproduced from Kamikaze, a part of the Japanese Special Attack Units of military aviators, and was used to deceive the US military to consumed their bombs during the Pacific War.