Tower of Philip the Fair

Tour Philippe-le-Bel is a medieval tower in Villeneuve-lès-Avignon which marked the French terminus of the Saint-Bénézet Bridge across the Rhone between the Kingdom of France and Papal territory of Avignon. It is named after the French king Philippe-le-Bel who was responsible for its construction.

A tower with only two storeys was completed in 1302. In spite of protests from the Count of Provence and the population of Avignon, Philippe-le-Bel pressed ahead and built a gatehouse at the end of the bridge. The tower and gatehouse formed part of a fortress with a curtain wall that enclosed several buildings including a chapel and a residence for the châtelain. A third storey was added to the tower in the middle of the 14th century.

Source: Wikipedia