05/23/2026
The Nishiyama Onsen Keiunkan, a hot spring inn in Yamanashi Prefecture, Japan, is recognized as the world's oldest hotel. It was founded in 705 AD by Fujiwara Mahito and has been run by the same family for 52 generations.
The inn has a long history of hosting guests, including military commanders and even Tokugawa Ieyasu, the first sh**un of the Tokugawa Shogunate.