Fort Nelson
A free-to-enter Victorian fort on Portsdown Hill, home to the Royal Armouries' collection of historic artillery.
From King's Cross St Pancras: 2 h 24 min by train · 2 h 32 min by car
Travel times by TravelTime
Time there: 1.5–2.5 h
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Quick facts
Entry is free, and there are 19 acres of tunnels, ramparts and artillery to explore.
Highlights include a 15th-century Turkish bombard, a 200-tonne railway howitzer and the Iraqi supergun known as Big Babylon.
The fort overlooks Portsmouth Harbour from the top of Portsdown Hill.
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