World Oldest Hotel – Nishiyama Onsen Keiunkan (Yamanashi, Japan)

According to the Guinness World Records, the oldest hotel in the world is Nishiyama Onsen Keiunkan. This ryokan—a traditional Japanese inn—has been owned by a whopping 52 generations of the same family. Founded in 705 AD, famous guests have included Tokugawa Ieyasu, the Land of the Rising Sun first shogun, and Kouken, its 46th emperor.