This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

Macabre astrological automaton clock dating to the late 1400s.

The hidden lair of an alchemist rediscovered in a 2002 flood.

A surreal museum of extraordinary industrial objects.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

The curios of pharmacist and collector Henry Wellcome.

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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Perhaps the tiniest sculpture in Saint Petersburg is a little bronze finch inspired by a song.

A surreal pile of colorful junk fills a small yard in an otherwise gray neighborhood.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

This Funeral Hearse Museum represents the finest in cadaver transportation.

This cemetery features modernist statues as strange as its name.

This semi-secret storybook hedge maze is also the oldest garden in the city.

18th century anatomical amphitheater of the Royal College of Surgery of Barcelona.