Smeaton's Tower Smeaton's Tower Smeaton's Tower is a memorial to celebrated civil engineer John Smeaton, designer of the third and most notable Eddystone Lighthouse. A major step forward in lighthouse design, Smeaton's structure was in use from 1759 to 1877, until erosion of the ledge it was built upon forced new construction. The tower was largely dismantled and rebuilt on Plymouth Hoe in Plymouth, Devon, where it stands today. The Royal Society recommended Smeaton for the task, and he modelled the lighthouse on an oak tree. He rediscovered the use of hydraulic lime, a form of concrete used in Roman times. The
Torre Grande Lighthouse a keeper's house. The tower is unpainted stone and the lantern is placed inside a room and shown thorough a bay window. The light is positioned at above sea level and emits one red flash in a 5 seconds period visible up to a distance of . The light is completely automated and managed by the Marina Militare with the identification code number 1394 E.F.; the building is managed by the City of Oristano which transformed it into the Museum of Coastal Towers. Torre Grande Lighthouse Torre Grande Lighthouse () is an active lighthouse located atop a coastal tower on