sentences:  The village lies atop the low lying north-south coastal ridge that defines the separation of the coastal plain from the Stora Alvaret.Alby is situated along the two-lane east coast highway, with the communities of Hulterstad and Triberga to the south; to the north lie the villages of Stagerstad and Stena.Alby is a component of the Stora Alvaret, which has been designated as a World Heritage Site by UNESCO due to its extraordinary biodiversity and prehistory.