Whaleback Light is a historic lighthouse marking the mouth of the Piscataqua River between New Castle, New Hampshire and Kittery, Maine. It is located on a rocky outcrop offshore southwest of Fort Foster and south of Wood Island in Kittery.
Cordouan lighthouse is an active lighthouse located 7 kilometres at sea, near the mouth of the Gironde estuary in France. At a height of 223 feet, it is the tenth-tallest "traditional lighthouse" in the world. Photo: by Phillip Plisson