Banquette

noun

1. A narrow area behind a defensive wall's parapet elevated above its terreplein and used by defenders to shoot at attackers.
2. A bench built into a wall, especially one built into a wall of a defensive trench, used for sitting and for shooting at attackers.
3. An upholstered bench, e.g., along a wall of a restaurant or lounge area.
4. A bench or similar seat on top of a diligence or other public vehicle.
5. A sidewalk.