Smeaton's Tower administrator Sir John Barrow. Smeaton's Tower has been a Grade I-listed building since 1954. It is open for visitors, who may climb 93 steps, including steep ladders, to the lantern room, and observe Plymouth Sound and the city. 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,
Mark Smeaton Queen's lover. The confession did not align with the facts: Smeaton stated he was with the Queen on 13 May 1535 at Greenwich. However, it is recorded that she was not at Greenwich on that date but at Richmond. It is believed that when being pressured to confess, Smeaton also supplied the names of members of the Queen's circle and all were subsequently arrested. After being tortured, he was taken back to the Tower and put in a cell. Those arrested for alleged adultery with Anne as a result of Smeaton's confession were Sir Francis Weston, Henry Norris, William Brereton,