Literally built to house celebrities (the hotel’s billionaire founder owns the Houston Rockets), this property hums with haute monde. With a first-in-class wine cellar, a helipad and a museum-worthy art collection, The Post Oak Hotel stuns at every turn. In keeping with its devotion to oversized opulence and ne plus ultra everything, its splendiferous Penthouse Suite, one of the largest in the US, takes the prize. On two floors, sprawling 22,000 sq ft, it incorporates a mini world of wonder via eye-popping attributes. Think: outdoor pool, a half-court basketball and cutting-edge gymscapes, a bowling alley, personal theater, sauna and a games room featuring a putting green and shuffleboard table. Supreme artwork, custom furniture (23 chandeliers!) and an army of attentive staff complete the fantasy come to life.