Throughout this guided tour you will discover the mythical narrow cobble streets of this old fortress. The monumentality of this citadel will impress you, as your guide tells you all the details of its fascinating history. You will be provided details about the rempart's construction, as you observe the castle from outside. Your guide will explain everything about the mysterious Cathars and military architecture, delving into all of the construction's secrets. Be prepared to also hear small anecdotes about the medieval period as you end with the discovery of the magnificent Basilica of St. Nazaire and St. Celse.