The Basilica of Agios Achillios, located on an island on the northern edge of Greece in Mikri Prespa Lake, is set to transform into a musical fairyland, echoing the sounds of Gustav Mahler.
The Basilica of Agios Achillios, located on an island on the northern edge of Greece in Mikri Prespa Lake, is set to transform into a musical fairyland, echoing the sounds of Gustav Mahler.