The Notre Dame Cathedral is a building built in the late 16th century, located next to the ancient Sun Gate Square, originally intended to house the Sisters of the Light. In the mid-18th century, a third nun of the Franciscan Order hoped to establish a monastery next to the church and requested to use the church as a place of worship for the monastery. Since 1882, this building has been used as the Saint Andr é Civilian Hospital. There is a small rectangular room next to it, characterized by two arched ribbed domes, and the dome and upper wall are decorated with murals. The original purpose of this room is not yet clear, but it is likely that it was originally the sacristy of a church.