when I was a kid I dreamed of building a house in the ocean - half in half out. I imagined swimming from room to room and would eat dinner on a floating dining room table
Hmmm, tons of pressure or no atmosphere. I'll take the moon, just because I'm optomistic that it would be a step towards getting off this little rock and finding a world with a permanent hurricane situated 450 miles off its east coast! Sci-fi + underwater = Stargate Atlantis! Best of both worlds spaceships and an underwater city, classic!