Ancient Sites in MiddletonAncient Sites in MiddletonArbor Low HengeArbor Low is a spectacular henge monument with inner stone circle, unique as all the stones are laid flat in recumbent style.Gib Hill Oval Barrow and Bowl BarrowGib Hill, located a mere 200 meters southwest of the renowned Arbor Low henge in Derbyshire, is a remarkable prehistoric site.