The Lady of the Sea Church, constructed in the early 20th century, overlooks the sea near the ancient Phoenician port of Byblos

The church is dedicated to Saint Jacob, also known as Mar Ya'qub, an apostle of Jesus Christ from the 1st century AD.

The building was bought to house Saint Aquilina's new church because the people of Byblos believe that after her execution, her body was discarded in the street now bearing her name.