西山温泉慶雲館 Nishiyama hot spring and inn Keiun-Kan. Keiun-Kan is an inn with the history that is the oldest in the world. It is Fujiwara Mahito to have discovered the hot spring of this inn. It was March, 705. Emperor Kouken of the 46th generation took a bath in this hot spring for 758 years. The upper photograph is Keiun-Kan of the Meiji era.