Founded in 1825, this famous restaurant is known almost as much for its unusual decor as for its food. Dramatic man-made rocks deck the walls of this gourmet grotto, soaring almost 7.5m (25 ft.) to a skylight that floods the interior with light. A delicate Belle-Epoque trellis offsets the restaurant’s cave-like contours, creating an exotic background for the offbeat ingredients that spice up the classics on the menu. Venison can be found in a cacao crust, sweetbreads like to snuggle up to roast eggplant, and sea bass might be doused in licorice butter. Reserve well in advance for a meal to remember.