I've posted this before with the precursor of an apology, should it offend anyone. A Catholic Church. I'm not Catholic but there's something very sexy to me about all of the dark wood, the red prayer candles, and just all of the ritual that goes along with it.
I always wanted to do it underwater. Not in a scuba suit or a submarine, but in a underwater building like an inside out aquarium. If anyone has ever played the game Bioshock, you'll know what I mean. Of course, I wouldn't want there to be sharks in this miniature Atlantis - just in case