The Answer:
The Island of Gavdos belongs to Greece.
Situated 22 miles south of Crete in the Lybian Sea, Gavdos is
the southernmost border of Greece and, consequently, Europe. On this
map of Greece
you can just barely make out the tiny island at the bottom, above the
first "r" in "Mediterranean Sea."
Although year-round inhabitants of the island don't total more
than 40, the island does see an influx of tourists each summer.
Islanders claim that their island is the Island of Ogygia where
the sea nymph Calypso detained
Odysseus for seven years in Homer's epic The
Odyssey.
—The Editors