This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The world's largest bamboo labyrinth is a living demonstration of the plant’s immense potential.

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

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

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

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

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

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

Where commuters walk through remnants of an ancient Greek necropolis.

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

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

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

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

Ham is serious business at the Prosciutto Museum-Serious, delicious business.

The highest waterfall in Italy is only "turned on" five times a year.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

A surreal statue honoring Prague's favorite literary son.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

A macabre anatomy museum tucked within an old Italian hospital.