This is interior of Saint Michel Jail (Maison d'arrĂȘt Saint Michel). You could see that they put nets to avoid prissoners jumping to the ground. This prison were build in 19th century, with red bricks and little stone, typical Toulousaine Building.
During the Nazi occupation, many were resistant prisoners sentenced to death and executed, as Marcel Langer, head of the 35th brigade FTP-MOI.
Wow! What an incredible place. You've captured it well.