Come fly with me, lets take a trip toooooo Penshaw. Park.
Penshaw/Herrington Park is a couple of mile from our home and we take the dogs there quite a lot. It used to be the site of Herrington colliery which was open casted when the colliery closed then turned into a country park. The obtect's behind Pearl are placed on top of what was the slag heap and are sight look outs. They are focused on various parts of County Durham which you see when you look through the slits of the metal casts.
Thank you Derek for he explanation , I did not have a clue what I was looking at! Us southerners have a lot to learn!