Looking for an art history or photography evening class

In an attempt to stop by brain atrophying I’m keen to take up an evening class of some description. I’ve done a literature course run by The Institute for Life Long Learning at the university and a film course at the Showroom and now fancy either photography or art history but can’t find a class. Let me know if you know of any such courses exist or indeed of any other interesting courses that might be more stimulating than an evening in front of the television.

Cheers