In a soaring waterfront sail loft with dollar bills tacked all over the high ceiling, Dennett's Wharf serves upscale bar food in a lively setting leavened by a good selection of microbrews. When the weather is decent, there's outside dining beneath a bright yellow awning with superb harbor views. Look for sandwiches, salads, and fried clams at lunch; dinner includes local lobsters, baby-back ribs, pad Thai (yes, really) and hanger steak. The newish oyster bar serves (obviously) oysters on the half-shell. But how did all those bills get on the ceiling? Ask your server; it will cost you exactly $1 to find out.