Beautiful coastal city of Zadar is known for its magical sunsets. It is also the town of the Sea Organ, a series of broad steps leading down into the water, but there’s actually very clever engineering hiding under the surface. The lower steps allow water and air to flow in. That water and air are then funneled into resonant chambers under the steps, and pushed out through the channels on the upper stairs. These produces the undulating, chime-like sounds. Because the sea is always shifting and changing, the sea organ never sounds the same twice. Each sound you hear is unique.