Santorini It is the largest island of a small, circular archipelago which bears the same name and is the remnant of a volcanic caldera. The whole complex of Santorini islands is still an active volcano. However the last big eruption occurred 3,600 years ago.
The Santorini islands are part of the the Cyclades, a group of Greek islands, southeast of the mainland in the Aegean Sea. One of the islands that is part of this archipelago is well known Mykonos.
Part of a series of 4 train stamps, issued 2015.