If you're craving seafood on the Upper East Side, you have to check out this spot, a neighborhood favorite that feels both lively and relaxed. It's famous for its Prince Edward Island mussels, which you can get in over 20 creative sauces, from classic white wine and garlic to a flavorful Thai coconut curry. Beyond the mussels, the raw bar is fantastic, and you shouldn't leave without trying the incredible donuts for dessert—they're a showstopper.