The Redoubt Fort, Harwich, Essex, England
Posted by: 
bluelamb03
N 51° 56.523 E 001° 17.293
31U E 382337 N 5755977
This is a 200 ft diameter circular fort built in 1808-1810 to house 11 guns in defence of Harwich harbour against Napoleon. It is now a museum.
Waymark Code: WMBF0B
Location: Eastern England, United Kingdom
Date Posted: 05/13/2011
Views: 4
From the Wikipedia entry:
"The Redoubt was built between 1808 and 1810 to protect the port of Harwich against the threat of Napoleonic invasion. It was part of the scheme that included the construction of 29 Martello Towers on the East Anglian coast. The Redoubt is of circular shape, approximately 200ft in diameter, with a central parade ground of 85ft diameter....Following a listing as an Ancient Monument, the restoration of the Harwich Redoubt began in July 1969 and has continued until the present day."
The structure is four stories tall, but most of it is sunk into the hilltop, the highest point of land around, and surrounded by a deep and wide dry moat. It makes for an interesting visit while in Harwich.