The oldest continually-operating business in the world is the Nishiyama Onsen Keiunkan, a hotel in the mountains of Japan. That doesn't mean it hasn't changed. Or changed ownership. And the title itself is open to interpretation. It all depends on how you define your terms. This hotel was once the oldest continually-operated family business in the world, but the current owner is not technically of the same family, but was pretty much adopted into the business, if you aren't hung up on legal terms. Anyway, Nishiyama Onsen Keiunkan started out as a place where you paid to camp and bathe in the hot springs, and is now a luxury hotel with all services. However, it is still the same business and it's never closed up shop. It is still pretty low-key and doesn't seek out a lot of publicity for its historic title. Tom Scott had the opportunity to stay at this lovely place and explore its history.