The Eddystone Lighthouse is a lighthouse that is located on the dangerous Eddystone Rocks, 9 statute miles south of Rame Head in Cornwall, England. The rocks are submerged below the surface of the sea and are composed of Precambrian gneiss. The current structure is the fourth to be built on the site.

Who constructed the Eddystone lighthouse?

Eddystone Lighthouse, lighthouse, celebrated in folk ballads and seamen's lore, standing on the Eddystone Rocks, 14 miles off Plymouth, England, in the English Channel. The first lighthouse (1696–99), built of timber, was swept away with its designer, Henry Winstanley, by the great storm of 1703.

How did they built the Eddystone lighthouse?

As part of the construction process, Smeaton pioneered 'hydraulic lime', a concrete that cured under water, and developed a technique of securing the blocks using dovetail joints and marble dowels. Work continued over the course of the following two years, and the light was first lit on 16 October 1759.