Modpools have transformed shipping containers into modern swimming pools with a window. Each pool can be set up in minutes, be made into a hot tub and can be controlled via your smartphone, where you can change the temperature, jets and light.
Fish tank in the ceiling. (I would either all asleep as soon as I walked into the room . or constantly be terrified that the ceiling was going to collapse. All in all, probably won't be part of my dream house.