Maunsell fort, Military fort complex in Thames Estuary, United Kingdom
The Maunsell fort consists of seven interconnected metal and concrete towers standing on stilts above the water level in the Thames Estuary.
Built in 1942 under the direction of engineer Guy Maunsell, these naval fortifications protected London's ports from German air raids during World War II.
The fortress towers transformed into centers for pirate radio broadcasting operations throughout the 1960s, marking a shift from military to civilian purposes.
Project Redsands organization conducts preservation work on the structures, while boat tours allow visitors to observe these offshore military installations.
The towers required eight hours each for precise positioning on the seabed, with teams using hand winches to lower the structures into place.
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