Aria's sleek resort hotel has no theme, unlike some of the Strip's other megaproperties. Instead, its 4000-plus deluxe rooms (520 sq ft) and 560 tower suites (920-plus sq ft) are all about soothing design, spaciousness and luxury, and every room has a corner view. If you've cash to burn, Aria Sky Suites & Villas, a hotel-within-a-hotel, might be for you.