This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Abandoned railway line circling the city of Paris.

Notorious artist squat renovated into legal studios.

These abandoned salt flats are now a haven for wildlife.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

This pink watchtower served as the seat of the Greek government after independence from the Turks.

A magical, if a bit tacky, 1960s castle conjures up medieval fairytales and Greek mythology.

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

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

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

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.

An ambiguous ambience emanates from this centuries old leprosy quarantine.

Local lore says two enemy dragons live within these breathtaking mountain lakes.

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

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

This town named for the ancient God of War is home to fewer than a thousand people, but it's the birthplace of the Greek Revolution.

An alien landscape on the banks of the Aegean Sea.

A sharp sculpture made of thousands of pieces of jagged glass.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

Thousands of rusting train cars have been slowly falling apart on the edge of Greece's second largest city.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.