This Island off the Amalfi Coast in Italy Is Shaped Like a Dolphin

Gallo Lungo once housed a monastery and then a prison before a watchtower was built there in the 13th century. Charles II, the king of Naples, used this watchtower to guard the Amalfi Coast against pirates. Over the years, responsibility for the island was passed down through the different wardens of the tower. However, once Italy became a unified country in the 19th century, ownership passed to the town of Positano.