GeoGraph - photograph every grid square

Five of Red Sands Fort's 7 towers. They appear as tiny blocks on the horizon from the shore but close up they exude an eerie, almost ominous presence. The tower in the foreground would have been a gun tower, with a gun placed on the flat section that protrudes from the front. Other towers would have different functions such as search lights and accommodation. Hundreds of soldiers would live on these towers in six week placements which were very unpopular due to the remoteness of the placement.