Δήμος Παγγαίου, Italy
The Tower of Apollonia or Tower of Eleftheres (Greek: Πύργος Απολλωνίας or Πύργος Ελευθερών) stands on the coastal hill 27 kilometres (17 mi) east of the Strymon River estuary in the Thracian Sea. The small settlement of Pyrgos, some 700 m northeast of the tower, is named after it.
Listen to the audio guide for Apollonia Tower Free on WIP — starts by itself when you arrive, even with the screen off