You must hear this to believe it

Rapid reconstruction to repair damage suffered in Zadar, Croatia, in WWII turned much of the seafront into a drab concrete wall. Today, inviting white marble steps lead from a university campus down to the water. Hidden below these steps are a system of tubes and a resonating cavity that turn the site into a huge organ, played by the wind and sea.

Below the steps are 35 musically tuned tubes with whistle openings on the steps above. Movement of the sea pushes air through the tubes and musical chords are played. The waves create random harmonic sounds. To visit the Sea Organ for a fews minutes and relax to it's enchanting tones, click on www.youtube.com/watch?v=lRYUindZvt8