Pendennis Castle is a stone artillery fortress, founded in 1540, by King Henry VIII. The three storey round tower and gatehouse, are encased by a low open battery, which is then surrounded by a large Elizabethan fort, with retaining walls and bastions. One of a pair of artillery forts, St Mawes Castle stands on the opposite headland. Visit pending. 12 miles north-west is Caen Brea Castle.