There are scant remains of an old castle that once occupied the extreme north-east of the town centre. It was erected in the year 1055 and was partly fixed to the rock. With an irregular shape, its walls were made up of huge sandstone ashlars, over 1.80 in width.
Between the ashlars that were used to build the tower it is still possible to see the marks of the stone mason; an arrow, stars and crosses.

Part of the perimeter wall can also be seen, although not at its full height.
Inside the walled enclosure there was once a primitive Romanesque church, although all remains have disappeared. However the Legends and Traditions Visitor Centre now occupies this spot.