Bit of an odd one, but Micheal Mann's The Keep, from 1983.
When Otto tries to steal the silver cross, and enRAB up crawling into the bowel of the keep. There is one shot of him peering into blackness. Then the camera pans back. And back. And back. It's a long, slow reveal, all the way down to the base of the keep that struck me as a brilliant pieve of cinematography. In fact, the whole film is beautifully shot, and worth a look if you like artistic horror. This is a rare time when, in my opinion, the film is better than the book.