This secret coastal village is studded with pastel-colored houses all piled on top of one another.

A little-known park with unusual, half-ruined structures and a mystical energy.

This abandoned Greek island was the last active leper colony in Europe.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

A small island with shimmering pink sands, home to loggerhead turtles and rare plants.

Seventeen oak trees sprout from the roof and walls of this tiny chapel without any visual evidence of roots.

The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

Poseidon? No one seems to know.

This medieval "painted village" is famous for its geometric facades.

The ruined doorway is a portal to the building's turbulent and torturous past.

This wrecked ghost ship has been rusting on a Greek beach since the 1980s.

Legend says this sacred tree was a gift from goddess Athena.

These ruins in Volvi were once at the intersection of the Eastern and Western Worlds.

Large collection from the 3rd millennium BCE.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

An alien landscape on the banks of the Aegean Sea.

Hideout of thieves, monks, and goat-footed gods.

A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.

Ancient Greek oracle of the dead.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.