These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.

This family tattoo parlor has been inking religious pilgrims in the Middle East for 700 years.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

This once architecturally advanced housing complex is now a haven for squatters that still bears the scars of war.

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

The partially submerged ruins of a white marble quarry used in ancient Greece for over 1,200 years.

There are many Byzantine-era churches still standing in Athens, but this is the only one with a 2,500-year-old column rising through its roof.

Overlooking the harbor is a beautiful neglected mansion guarded by two Egyptian sphinxes.

A miniature desert appears out of nowhere on the lush isle of Lemnos, like something out of a Greek myth.

This smily stone feline is meant to represent a mythical lion that almost destroyed the island of Kea.

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

Ruins of a 13th-century fortress perched above a breathtaking Mediterranean bay.

Every spring, locals see the shadowy figures of a ghost army of slain Greek soldiers descend upon this ruined fort.

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

The abandoned summer estate of the former Greek Royal Family.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

What once sat in the world’s spotlight is today a largely disused ghost complex.

A sprawling collection of books and manuscripts about ancient Greece that would have put their famed libraries to shame.

This little-known, 35,000-specimen collection in Greece is a lepidopterist's dream.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

The rocky remains of an ancient Greek forest.

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

This field of half-buried stone crosses was the burial place of a sect of heretical gnostics.

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