During out maiden voyage on Friday someone (I annoyingly forget who) told us that Dudley Castle at Dudley Zoo had a camera obscura at some point. This article in Dudley News from 2010 tells us that yes, there was!
Artist Laurence O'Toole designed and created the camera obscura, which is housed in a turret of Dudley Castle. The turret camera was created in 1993 as part of a creative arts festival and provides visitors with a breathtaking view over Dudley town and beyond.
Back then it was "undergoing maintenance work, which is hoped to be completed by next season" but there's nothing on the official website.
Here's a photo taken by Gary Jones in 2011:
Is it still there? Can we go and visit it? Questions that must be answered!