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
Mark Smeaton around his eyes. Anne is not thought to have noticed his disappearance nor had she been informed of his arrest. At 6 pm on 1 May, Smeaton was sent to the Tower of London. Before his arrest, Smeaton was known to spend lavishly on horses and liveries. This was seen as suspicious, as Smeaton earned only £100 a year; the implication being that he had received money from the Queen in exchange for "services" as her lover. While at the Tower, Smeaton was placed upon the rack. It was during this form of torture that Smeaton confessed to being the