"The Palazzo Las Vegas Both the Palazzo Las Vegas and its sister property, the Venetian, share enough facilities and services (including the largest spa in Las Vegas ), and are so closely connected that Guinness World Records considers them as one in determining that, with a total room count of over 7,000, they are the biggest hotel in the U.S. (they are also the only all-suite hotel and casino on the Strip). Technically, though, the Palazzo, which opened in 2008, is a stand-alone, with its own lobby, two casinos and a poker room, upscale shopping, 15 restaurants, and a five-acre pool and garden deck. It also has its own vibe, which is less theme-driven, more hip than at the Venetian—although it’s not without its glitz, as one can’t help but notice when looking at the huge glass dome above the lobby. Spread over three towers, the Palazzo’s suites, with their sunken living rooms, are nearly double the size of average guestroom on the Strip (and almost identical to the Venetian’s suites) and their views, from the highest of them, among the loftiest in Las Vegas."