Kraków’s oldest church sits not unlike a lost orphan at the southeast corner of the Cloth Hall, a mad mix of pre-Roman, Roman, Gothic, Renaissance and Baroque architecture, all crammed together in a higgledy-piggledy jumble of religious styles. The earliest parts of the building date from at least the 11th century, pre-dating the Rynek and explaining its seemingly random position within it. St. Adalbert had his own cult following at the time, which explains how it managed to survive. A look inside is well worth it, not least because the floor sits some two metres below the surface of the main square.