 Although Caernarvon was identified as a castle site by a later member of the family, 17th century historian Sir Daniel Fleming, some experts believe it was never inhabited, and that its alternative name "Coneygarth Cop" may indicate that it was a medieval rabbit warren.Calder Abbey, which lies by the River Calder just north of Calder Bridge, is a picturesque ruin adjoining Calder Abbey House, a largely 19th-century house which incorporates some remains of the abbey.The village also houses an 18th-century coach house, this is now the White Mare public house.