Fort Brockhurst – Hampshire

English Heritage
Fort Brockhurst is one of a large number of forts built to defend Portmouth in the Victorian era. It is one of five outward-facing forts positioned to defend Gosport against a land attack by the French. It never fired a shot in anger, and never received its full complement of guns, but remained in use as a barracks till after the Second World War.
Of the four surviving forts of this group of 5, this is the only fort open to the public.
The fort is surrounded by a water-filled moat, and another moat surrounds the circular keep which was intended as a final refuge should the rest of the enclosure be overrun. Visitors can enter spaces including the keep, parade ground, the Institute welfare building for soldiers (now a museum), a barrack room, armourer’s workshop, ablutions room and walk along the ramparts.
Admission is free.
Note that the fort is only open for around 1 day a month and it opens at 11am rather than the usual EH 10am. If you arrive early, you cam walk the perimeter of the moat.
There is free parking for cars in front of the fort. (Width restriction).