Seen here is a 230 ft long ‘sea organ’ (morsek orgulje) located on the shores of Zadar, Croatia and played by crashing waves. Created in 2005 by architect Nikola Basic, the acoustic architecture contains 35 musically tuned tubes with whistle openings on the long steps.

Depending on the size and velocity of the incoming wave, musical chords are played, creating random harmonic sounds for those nearby.

For those curious, you can listen to the sounds of the sea in the embedded Soundcloud clip below.