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
Amlwch Lighthouse B., "Lighthouses of Wales: Their Architecture and Archaeology" (Royal Commission on the Ancient and Historical Monuments of Wales, edited by Hughes, S., 1994) <br> Amlwch Lighthouse The Amlwch Lighthouse (Grid reference: SH 452937) is a lighthouse tower situated on the outer pier of Amlwch, at the northeast tip of Anglesey, Wales. The existing lighthouse, a square tower erected in 1853, is the fourth on this site. It has original fine, but battered, ashlar masonry to a height of ; the present lantern was added on top at a later date. Two short piers at Amlwch were built following a private