The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

Scars of this building's past life as a violent prison still cover its walls.

Scores of wax baby figurines add an unusual mood to this beautiful church on the Greek coast.

A Byzantine-era church hidden in a wooded area below the Acropolis.

The historic building has preserved human organs, unusual hexagrams, and scars from a political assassination.

This slumbering beast honors the Bavarian soldiers who died in Greece during a 19th-century typhoid outbreak.

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.

This beehive tomb built for royalty sat hidden for over 3,000 years.

This architecturally eclectic early-20th century mosque was built as a place of worship for the Islamic followers of a Jewish messiah.

This ancient statue of Dionysus lies unfinished and abandoned in one of Greece's oldest quarries.

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

A grotesque collection of wax limbs depicting the symptoms of venereal disease.

This little Greek plateau is home to thousands of rustic, white-sailed windmills.

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

The abandoned summer estate of the former Greek Royal Family.

The historic tower houses of this nearly abandoned Greek town have been compared to the spikes on an iguana's back.

An ambiguous ambience emanates from this centuries old leprosy quarantine.

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

Poseidon? No one seems to know.

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

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

Cretean quarry suggests real-life site for ancient Greek myth of the man-eating Minotaur in his labyrinth.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.