The Sea Organ is an incredible musical instrument made up of a system of pipes and whistles that plays actual music as the waves of the Adriatic Sea push air through it.
At the end of World War 2, the shoreline of Zadar, a beautiful Croatian city with a history dating back to prehistoric times, had been almost completely destroyed. In the years that followed, many of its lost landmarks were rebuilt as plain blocks of concrete, and the coastline was no exception. Seeking to restore it back to its former glory, local authorities brought in award-winning architect Nikola Bašić, who, inspired by the hydraulis, an instrument built by the ancient Greeks that used water to push air through tuned pipes, designed and overlooked the construction of the Sea Organ, or Morske orgulje.