They are very very evocative when you sail past safe in the knowledge that if the cargo goes up, you are probably in the best place to not know about it.
After that chimney was demolished the sight of those masts in the misty distance, is a reassuring indication that you will soon be out of that envigorating and bracing NE wind against that ebb spring tide and you will soon be enjoying that 10 mile slog back up to your mooring, contemplating all those jobs that will need doing before you can go anywhere else.