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

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

A spectacular cave and a beguiling lake.

The hallucinogenic center of the ancient world.

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

These ancient ruins hide in plain sight next to a dessert shop.

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.

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

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

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

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

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

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

A marvel of Byzantine engineering under the streets of Istanbul.

An awe-inspiring giant blue whale jaw bone stands in the center of this Dutch island.

The 20-mile causeway that separates the Netherlands from the sea.

This vast collection of smoking pipes from across the world spans centuries.

The world's largest collection of ships in bottles.

The history of sea-faring refuse and disaster is on cramped display in this Netherlands folk museum.

The birthplace of most all of Europe's space missions is here on the Dutch coast.

Remarkably preserved body discovered in a peat bog.

This medieval castle was painted pink as part of a now-abandoned children's theme park.

This massive collection of taxidermy is full of specimens collected by missionaries during their international travels.

Home to the world's oldest functioning orrery.