Dominating the town skyline, this was the first of the great Border abbeys to be passed into state care, and it shows – audio and visual presentations telling the abbey's story are scattered throughout the carefully preserved ruins (good for the kids). The red-sandstone ruins are roofless but relatively intact, and the ingenuity of the master mason can be seen in some of the rich (if somewhat faded) stone carvings in the nave.
The abbey was founded in 1138 by David I as a priory for Augustinian canons.