This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

This ancient structure appears Roman, but was constructed during the 16th century and was utilized until 1911.

A solemn reminder of the infamous World War II war crime that massacred almost all the men in a small Greek town.

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

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

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

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

An abandoned Byzantine fortress and notorious prison.

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

Temple complex that once housed the famous statue of Nike.

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

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

An ancient octagonal weather station named for the eight Greek gods of wind.

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

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This legendary city has been a tourist attraction for centuries.

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

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

A spectacular cave and a beguiling lake.

The hallucinogenic center of the ancient world.

Monasteries on rock pillars, once accessible only by frayed ropes.