Five-Star Underwater Hotel
During the Cold War, the Soviets did everything possible to best the Americans in every area, and submarines were no exception. As a result, the Soviets developed what is still today the world’s largest submarine class: typhoon.
Clearly, these submarines had all the amenities one could hope for, including a sauna, cold water pool, recreation area, gym, and cinema. Such luxuries are not surprising given that our comrades serve at sea for up to six months straight!