You can't miss the magnificent Bell Tower of Lille. It's free to visit. Be prepared to climb 104 steps! Following your
efforts, the city of Lille appears below with a view of 30 kilometres on a clear day.
The Old Stock Exchange, built from 1652 to 1653 by Julien Destrée, is inarguably the most beautiful monument in the city. In its courtyard, it welcomes booksellers and during summer, tango demonstrations.