Berkhamsted Castle

On a summer's evening in the setting sun, it is reputed that if you look towards Wigginton, Hertfordshire, you can see the light glinting off Parliamentarian forces' pikes, armour and helmets.

Update 29/11/21: Adrian Barham, Chairman of the Berkhamsted Castle Trust informed me, "I'm afraid there have been no reports of such phenomena at the Castle."

Link: HertsLive

Website