I think this location was used in the introduction to the PBS TV series Poldark.
The chimney looking thingy is a part of the old copper or tin mine.
St Ives
As I was going to St Ives,
I met a man with seven wives,
Each wife had seven sacks,
Each sack had seven cats,
Each cat had seven kits:
Kits, cats, sacks, and wives,
How many were there going to St Ives?
Land’s End

The British end of telephone and telegraph undersea cables connected to the USA in a bunker on a small beach. The remote beach was a carefully guarded secret during WWII.

View from our hotel in Falmouth