johnwiddop / DarwinDude / forza to thread?

Gonna go to Poland for ten days or so in August. Gotta be in Katowice for a festival for 3 days but aside from that I wanna do some travelling about. I've been to Gdansk and Krakow and loved both. I like: art galleries, faffing about in bars and cafes pretending to be all European, and I really don't mind long train journeys. If I could factor in an accessible countryside-ish place to stay for a night or two that would be swell.

Hit me up some recommended places, yeah?