Fine food and fine art are two musts that should be on any traveler's itinerary. Get a taste for the latter at Lille Museum of Modern Art, where you'll find lots of interesting pieces to whet your creative appetite.
You'll have no end of sightseeing choices in Cousinerie. Lille Museum of Modern Art is a good place to begin here, but there are lots of other worthy places to check out. Lille Grand Square, Rihour Square, and Citadel of Lille are not far from the collection of precious artworks and will round out your day nicely.