Dartmouth, Devon - October 23, 2013
Dartmouth Castle photographed on October 23, 2013 is one of a pair of forts, the other being Kingswear Castle, that guard the mouth of the Dart Estuary in Devon, England.
The present Guntower building is the earliest surviving English coastal fortress specifically built to carry guns.
It was built by the corporation of Dartmouth between 1481 and 1495 and additions, including open-air gun platforms, were made during the 16th century by Henry VIII and again in the 17th century in order to accommodate new military technology.
The castle was in military use through to the end of the Second World War. It is now in the care of English Heritage and open to the public.