Spiral labyrinth hidden in the hills above Oakland, CA.

Dive bar built out of the remains of a whaling ship.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Where Aleister Crowley attempted to seize the Hermetic Order of the Golden Dawn in a mask and a kilt.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

The monster at the center of the Darwin Center Spirit Collection.

This South London cemetery holds the remains of more than 15,000 people.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

The curios of pharmacist and collector Henry Wellcome.

The anatomical-pathological collection of a man who changed surgery.

A beautiful Victorian-era cemetery, complete with a miniature village.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Bold black and white motifs of life and death add a dramatic flair to this 17th-century crypt.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

A fortified city, home to a remaining population of five families

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

Single runway interrupted by a busy road that cuts across its middle.

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.

The venerated body of a 12th century saint is celebrated each year with the 'Race of the Candles.'

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

A walkable map of the world, made from soil and stone by one man.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

Australian museum dedicated to human health and lack thereof.