A party place built in 1958 and renovated in 2008, the Riviera attracts young, well-heeled, bikini-clad guests who hang out around the pool by day and the Bikini Bar by night. Spacious rooms fill a collection of two-story buildings that circle a huge free-form pool, with a restaurant and a couple of bars tucked into corners. That's where you'll find the action. From the upper floors you can watch from your balcony, or reach out and join the fun from your ground-floor patio. Although adorned with huge and tiny mirrors everywhere, rooms are done in an appealing Age of Aquarius palette of orange, brown, and green. There are oversize mid-century lamps, chandeliers dripping with baubles and mirrors, and ample bathrooms with marble counters and floors; many rooms have whirlpool or soaking tubs and fireplaces. All rooms have jack packs where you can plug in MP3 players, DVD players, or computers.