These rusting sea forts were built near a certain capital city. Which one?
The Thames Estuary Army Forts were constructed in 1942 to a design by Guy Maunsell. Their purpose was to provide anti-aircraft fire within the Thames Estuary area. Each fort consisted of a group of seven towers with a walkway connecting them all to the central control tower.
reach: rather globalabandoned buildingsfortsUnited KingdomWorld War II
Illustration: Matt From London