The Church of St. Mary Magdalene is situated on the archaeological site Gorica, in Ston (important center and an episcopal seat in the principality of Zachloumoi).
It was a single-nave late antique basilica that was adapted into a three-nave basilica in the second half of the 9th century, with a bell tower on its Western side. It probably housed the Ston bishops cathedra.
In the Church interior the remains of fresco decoration and a late antique sarcophagus have been found (today kept in Dubrovnik).