Located in the shadow of the Williamsburg Bridge, the aptly named diner is actually an old railroad dining car that "spatula's out" some of Williamsburg's best burgers and fries. However, the menu here is not limited to mere grease artistry, for Diner also offers several awesome fish and seafood dishes, including trout, mussels and grilled mahi-mahi. Diner is "in" with the trendy crowd, who flock here during the late-night hours for a quick bite and a little atmosphere. The restaurant also has a strong corp of regulars who crowd the booths at lunch. Adding to the place's popularity is the little known fact that they serve one of Williamsburg's best martinis. TRAIN: L to Bedford Ave