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
Geitungen Lighthouse light sits at an elevation of above sea level on top of an octagonal prism tower. The concrete masonry tower is attached to a U-shaped one-story lighthouse keeper's house. The lighthouse is painted white and the roof is red. The lighthouse also emits a racon signal, using the morse code letter "G". The racon signal can be received inside a radius of the lighthouse. The lighthouse was established in 1924 as a replacement for Skudenes Lighthouse, which had operated from 1799 to 1924. Geitungen Lighthouse was designed by Jørgen H. Meinich, who later also designed Makkaur Lighthouse. The argument for