One tiny room given over to the provision of information about the rocks and geological structures in the Kraków region. Featuring a few glass cases full of rocks and crystals with Polish explanations, it’s not exactly going to blow you away, but it’s nice enough as a brief interlude all the same, and they’ve also thoughtfully provided a brochure in English to help demystify what is a specialist subject to say the least.

Admission 4/3zł. Last Sat of each month entrance free. Groups by prior arrangement.