Fort Nelson
Boarhunt, United Kingdom · built 1860
Fort Nelson, in the civil parish of Boarhunt in the English county of Hampshire, is one of five defensive forts built on the summit of Portsdown Hill in the 1860s, overlooking the important naval base of Portsmouth and is a Grade I Listed Building. The current tenant is the Royal Armouries, housing the artillery of the national collection of arms and armour.
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).