Dalat's 'Crazy House' is one of the most unique accommodations out there. Originally designed by 79-year-old Dang Viet Nga, this avant-garde guesthouse has no right angles and features an organic form that mirrors elements of nature such as mushrooms, shells and spiderwebs. The main house resembles something from a fairytale while four enormous tree houses surround it. Guests can stay in one of the 10 rooms, named after an animal or plant, or simply tour the attraction for a fee. To top it off, there are bridges built with sinuous cement "branches" twisting and winding around the various houses, allowing visitors to traverse through each structure and explore its hidden nooks. 'Crazy House' is a living, ever-changing creation that can't be missed.