2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Rome’s legendary peephole vista is also a former Crusader stronghold.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

Drink wine handed out through a window as part of an age-old tradition.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The headquarters in Salem doubles as an occult art gallery.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

These caves secretly held national treasures during World War II.

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

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

Where commuters walk through remnants of an ancient Greek necropolis.

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

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

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

This legendary city has been a tourist attraction for centuries.

The hallucinogenic center of the ancient world.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

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