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

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

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

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Giant marble phalluses on the sacred island of antiquity.

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

Inside a former cabaret, seven floors of erotic art.

An antique curios dealer and hybrid taxidermist.

Saintly bones pressed into a wax effigy of a Catholic superstar.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

This little-known relic crypt holds stolen parts of a Roman Empress.

Skeletons, medical artifacts, and other obscure and precious treasures all displayed in a wooden pharmacist's cabinet.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Statue of death tucked in the University of Medicine courtyard.

France's most famous cemetery, with some of its most curious tombs.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

The social hall of this former factory is a Communist-era time capsule.

Mysterious standing stone formations looks like a petrified forest.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

Once the site of a 12-century monastery, this tiny island is now home to only five permanent residents.

The oldest bookstore in Iceland.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.