• 23rd annual communication of ancient towers

    Acropolis of Aghios Andreas Mycenaean Acropolis of Aghios Andreas at Sifnos, Sifnos, Cyclades, Greece

    On Pentecost Sunday, May 31, 2026, at 7 p.m., the towers and ancient monuments of Sifnos will be mentally united for the 23rd time through the revival of the ancient communication system that connected the then known world with great...