Tintern Abbey

Tintern Abbey was a Cistercian monastic foundation and one of the largest and most advanced of its time. The abbey church still stands to above window height including the stone tracery of the east and west windows. All Cistercian abbeys were dedicated to St Mary and there is a modern statue of the Virgin and Child (holding a bird in his hand) in the south aisle. The cloisters with remains of the monks reading cells are on the north side of the abbey.

There is more historical information here.