Just awhile ago, my hubby and I were talking about unique hotels and what it these things will exist. We had a grand time imagining what these hotels would probably look like. One of our discussions was imagining a hotel found under water wherein you can see the ocean bed as the landscape view and see big and small fishes swimming around you. It would be cool to stay in one!
Anyway, I think it would not be possible. When I was younger, I saw movies that showcase impossible technology but now most of them are already possible. Underwater hotel is not only possible, someday we might have an outer space hotel too!