Nothing compares to the "wow-factor" at this striking Philippe Starck-designed complex—a favorite of visiting rock stars and fashionistas. Large rooms, glass walls, red velvet drapes, and heaps of personality make this place one of a kind, rich in drama, glamour, and flair. The location, at the edge of Puerto Madero, is safe but awkward for exploring the city. Come for a meal or a drink to just check the place out if an overnight is too intimidating.