- Located on the lovely Place des Terreaux, Opus represents a new concept of the Bar & Restaurant. Its innovative design causes the space to evolve with the passage of hours and minutes. The unique decoration combines a constantly changing play of light both inside and outside with clear and uncluttered furnishings. The result is a unique sensory experience while sampling the modern, innovative cuisine. At lunch, the dishes change each day according to the chef's inspiration. In the evening, beside the offerings from the menu and the grill, three prix fixe menus revisit French classics with flavours of Asian and World cuisine.