The Maldives. I would like to go back there, become a dive instructor, and live a simple happy life. And I want this to be my house, five meters below the surface, off the coast of Rangali Island.
Unfortunately, it's not available for sale. It's the 12-seat restaurant of the Hilton Maldives Resort & Spa, which is located five meters under water. It has been temporally turned to a suite to celebrate its 5-year anniversary.
The only room better than this would be the same room inside a giant-squid-proof submarine with a pipe organ. [Luxist]