Zadar’s incredible Sea Organ , designed by local architect Nikola Bašić, is unique. Set within the perforated stone stairs that descend into the sea is a system of pipes and whistles that exudes wistful sighs when the movement of the sea pushes air through it. The effect is hypnotic, the mellifluous tones increasing in volume when a boat or ferry passes by. You can swim from the steps off the promenade while listening to the sounds.
