No, there's nothing left inside, whatever was in it was removed and any shafts plugged. The entire area has been reclaimed as much as possible. When I saw it, I thought it was a convective cooler for some long-gone industry. There was another person there taking photos, he said no it was an air shaft for the coal mines, his grandfather probably did the brickwork on it because that's what he did after he couldn't work in the mines anymore.