Although many think that Patmos was a barren Alcatraz-like island where John was exiled, this is not true (see Franz below).
On the central portion of Patmos, the “Kastelli” (acropolis) towers over the main harbor at an altitude of 1,550 ft. [472 m.].
The woman in the image is actually standing in the entrance–way. The original line of fortifications is from the Hellenistic Period (third century B.C.), although this gate may have been rebuilt in more recent times.
View looking southeast at six courses of stone of one of the towers on the north slope of the acropolis of Patmos that is called the “Kastelli” (acropolis). These fortifications date to the Hellenistic Period—that is about the third century B.C. Compare the style of the well–preserved Hellenistic fortifications found at Priene and Assos—both in Turkey.
To view additional images of the Acropolis/Kastelli on Patmos Click Here.
For a helpful article describing the Patmos that John was exiled to, see Gordon Franz, “The King and I (Part 2).” Bible and Spade 12 (2000): 115–23. It is also available on Gordon Franz’s web site Life and Land but without graphics.