Day 327 - This Old Lighthouse at Dungeness is the fourth to be built on the site and at 143 feet high is one of the highest in the UK. Building work commenced in 1901 and it was operational between 1904-1960. The top lantern room, has a slate floor and a steel roof, it houses a massive circular lens which used to float on a mercury base. Since it's decommissioning in 1960, it opened as a tourist attraction and museum, visitors can climb the 169 steps to the top and get a panoramic view of Romney Marsh. The fifth lighthouse (in operation today) is situated half a mile away and is fully automatic. https://dungenesslighthouse.com/history