In 2016, Turkey sank a retired Airbus A300 into the Aegean Sea to create an artificial reef for marine life

In June 2016, authorities in Turkey carried out an unusual experiment off the Aegean coast near the resort town of Kuşadası, deliberately sinking a retired Airbus A300 passenger jet to create an artificial reef. The aircraft, purchased by the Aydın provincial government for around 270,000 Turkish lira, or roughly $93,000 at the time, was lowered into the sea to a depth of about 75 feet, where officials hoped it would eventually become a habitat for marine life while also creating a new attraction for divers.

Raccontata datimesofindia.indiatimes.com