Notre-Dame de Calais
		Exterior
		The Flemish and English styles
		The Flemish style is represented by the foliated capitals inside the church, and by bands with pointed arches and corbel bartizans. The English style is mainly represented by the bell-tower at the transept crossing, the flat chevet, the wood panelled vaults, the Tudor style basket-handled arches and the higher windows in the nave.
		The western front
		It consists of a large gothic former window  between sturdy buttresses. Following the filling of the river of Guines in 1702, a main doorway was opened, and the  window was walled to allow the setting up of the organ in the 1730s.
		Northern transept and the reservoir
				Northern transept : the two towers with arrow slits and thick walls show evidence of defensive characteristics. The reservoir Water from the church roof runs into a huge reservoir which dates from the 17 C (1691) and was built on the order of Louis XIV by Vauban, his famous military architect and engineer, in order to provide the garrison and the population with water. Its walls are from 2 to 4 m thick and it can contain as much as 1800 m3. It was listed in 1927.
		The bell tower
		The bell tower is 58m high. It dates from the 15 C. It consists of a square base topped with a two level octogonal spire. Watchmen used to live on the 1st level until 1846 and  the second level encloses 4 bells, one of which weighs 2.8 tons.
		The Chapel of the Holy Heart
		Built in 1635, it is now used as a vestry. Tudor style mullion windows are to be noticed. The Seigneur de Gourdan-the governor or of Calais : Ginault de Mauleon is buried here. Through the wall, steps lead to a former private gallery opening out onto the St James transept.