The tower you can see on your left is a horseshoe shape. It was built during the reign of Philippe Auguste in the 13th century. The tower has three floors and on top sits a terrace which is accessible from the wall walk. The arrowslits of this defence tower are not in line on each floor and are positioned at different points around the tower to ensure efficient defence and to prevent the building from being damaged.
It takes its name from the kennel which was situated nearby, in the park of the Fortress, where the royal dogs were kept in the 15th century. At the time, bread ovens and latrines were situated next to the Tower of the Dogs. These would have been the essential facilities for the royal household of king Charles VII (bread-making, accommodation for the staff etc.)