Kefalari Cave in Argolida, Peloponnese
This cave is located in the picturesque village of Kefalari, on the legendary mount Haon. They were inhabited from the prehistoric to the historic ages. Excavations carried out in the site brought to life findings that date back to the Neolithic age and objects dating to other periods of the Stone Age. During the Turkish occupation, a lot of people found shelter in the caves, establishing a small community with a secret school. The caves were also used as a place to worship Dionysus and Pan. Today, one of the caves hosts the church of Zoodochos Pigi (Our Life Giving Lady) of Kefalari.