Hemyock Castle is a privately owned scheduled ancient monument located in Devon's Culm Valley within the Blackdown Hills, combining a rare late 14th-century moated castle with an older manor house core. The site displays substantial remains of towers, walls, moat, and grounds, chronicling centuries of history including its role as a Parliamentary garrison during the English Civil War before being besieged and captured by Royalists. The castle periodically opens to the public on Bank Holiday Mondays from Easter through September, offering video tours and detailed historical exhibitions, with converted outbuildings available as holiday cottage rentals.