In Zadar, the oldest city in Croatia on the Dalmatian Coast of the Adriatic, there is an sea organ which plays the timeless music of the waves.  The sea itself is the composer and performer of the music. Waves force air through 35 harmonically tuned tubes built into a promenade of marble steps, creating random and yet hauntingly musical tones. The sea organ was created by architect Nikola Basic in 2005, who received the European Prize for Urban Public Space for this project.