Smeaton's Tower stood were becoming eroded. Each time a large wave hit, the lighthouse shook from side to side. Smeaton's Tower ceased operation in 1879 with the illumination of Douglass's Tower on an adjacent rock. In 1882 the upper part of Smeaton's Tower was dismantled and rebuilt as a memorial to Smeaton on a new base on Plymouth Hoe, replacing the triangular obelisk that had been built there by Trinity House as a navigation aid in the early 19th century. It was opened to the public by the Mayor of Plymouth on 24 September 1884. The foundation and stub of the old
La Rocchetta Lighthouse La Rocchetta Lighthouse La Rocchetta Lighthouse () is an active lighthouse located on the southern part of the promontory of Piombino overlooking the Piombino Channel which separates the Elba from the mainland. The lighthouse was built in 1928 on the same place where once was La Rocchetta, one of the four defensive fortifications, then demolished in the 1920s in order to make room for a panoramic town square above the cliff, which were connected to each other by walls that surrounded the city. The lighthouse consists of a quadrangular grey stone tower in Neo Gothic style, high, with castellated balcony