This brilliant conversion of a parking garage into a stunning 91-room hotel continues the Firmdale hotel group's unbroken winning streak (it has five other London hotels). The gorgeous public rooms include a huge lounge, a small library with an honor bar, and a restaurant, Refuel, that offers exactly the kind of all-day dining (smoked salmon and blinis; tagliatelle with lobster, tomatoes, and tarragon) that the global style-and-media tribe find tempting (24-hour room service has a similarly tasty menu). Rooms mix antique and modern pieces to create a look that is at once louche, elegant, and luxurious.