This is a humongeous shopping center. You cannot see the bird cut out that is part of the sign. It is like a Wal Mart, but is about the size of 10 Costcos. Also around the edges of the inner store, there are all kinds of little shops, restaurants, etc. It is just huge.
Here is just part of the fish market inside of Auchan. The fishmongers yell for you to buy their wares just like in the movies.