Sky Garden House by Guz Architects. Wierd, but I think it would be really nice to inhabit. It's also an interesting application of green roofs/roof gardens to a very modern, otherwise steel and concrete design.
Falling Water by Frank Lloyd Wright. Fallingwater or Kaufmann Residence is a house designed by architect Frank Lloyd Wright in 1935 in rural southwestern Pennsylvania, 43 miles southeast of Pittsburgh.
WANT THIS DREAM HOUSE! in the Hollywood Hills by John Lautner. It combines innovative space ideas with modern organic architecture of wood and glass, polished concrete floors and a minimalist interior, giving the house a tranquil spa-like feel.
Nautilus Undersea Suite at The Poseidon Resort, Fiji. Normally I don't post stuff like this, but wow. this is officially my dream vacation spot. I could spend hours lying in bed watching the fish swim by!