Rynek Underground: The Medieval Market Beneath Kraków’s Square

Four metres beneath the Main Market Square lies one of Kraków’s most surprising museums: the Rynek Underground (Podziemia Rynku), a modern, atmospheric walk through the medieval market level of the city, built around the real excavated streets, foundations and objects uncovered here. It is one of the best things to do in bad weather and a favourite with children. For the wider picture, see our Kraków travel guide and Main Market Square guide.

What you see

The route winds through the layers that lie under today’s square — the cobbled trading streets, the foundations of the medieval cloth stalls and weighing houses, and thousands of everyday finds: coins, lead seals, jewellery, tools and the goods that passed through this great marketplace. It is a branch of the Museum of Kraków, and belongs to the same story as the Cloth Hall above it.

Why it is special

Unlike a traditional gallery of objects in cases, the Rynek Underground uses holograms, projections, soundscapes and reconstructions to put you inside the working medieval city. You walk where traders walked, past a reconstructed smithy and merchant stalls, with the history explained around you rather than behind glass. The result is immersive without feeling like a theme park, and it works for all ages.

Practical tips

• Book ahead. Timed tickets are limited and sell out, especially in summer — reserve online through the Museum of Kraków before you arrive.
• Find the entrance. It is on the north-east side of the square, by the Cloth Hall near St Mary’s — look for the low stone doorway.
• Allow about 1.5 hours for the full route, and note it is cool underground even in summer.
• Great for families and for a rainy afternoon; see our Kraków museums guide for more indoor options.

Frequently asked questions