The Stone Gate is the only surviving original entry to the medieval Upper Town: a vaulted stone passage cut through the city wall in the 13th century, with cobbles worn smooth by eight centuries of footfall. Walk through it from Radićeva Street and you pass through a small chapel built into the gate itself, where the Madonna of the Stone Gate hangs behind a 19th-century wrought-iron grille.
The walls around the painting are lined with thousands of stone plaques inscribed hvala (thank you), left by pilgrims fulfilling vows. People kneel in the passage and light candles on the small benches; you can rest a minute and then continue out the other side into the Upper Town. The shrine is open all day.