This wacky hotel is found 21 feet below the surface of Florida's Key Largo coastal waters. Don't worry about bringing a picnic lunch, either. According to Times Online, "a chef will dive down to cook your meal".
Room with a view? The bedroom has a 42 inch window. Forget the Plasma screen when the real life Discovery Channel is right in front of you. However, couch potatoes need not worry - the common room has a TV with DVD and VCR players.
Not a diver yourself? You can still stay at Jules'. Their website reassures that "even guests who have never scuba dived before can stay in Jules' Undersea Lodge. A pleasant three hour class acquaints non-certified divers with the equipment and simple procedures necessary to comfortably dive in the company of the Lodge's dive instructors."