An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

The morbid items in this small and hidden museum are not for the weak stomached.

Commonly acknowledged as the only public monument to the Devil himself.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

An ancient Egyptian temple in the middle of Madrid, Spain.

Some of the freshest vegetables in Seoul are grown in a subway station.

A remnant of Korea's colonial past lies forgotten in a hip neighborhood in Seoul.

A Korean village where times stands still.

Asia's largest limestone cave is home to a world of plastic goblins and gold mining history.

One man's lifetime collection of tiny objects of wisdom gathered from around the world, on display for public enjoyment.

Tracking the 1,500-year history of Korea's star cabbage.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

To enter the lower hall of this temple, you must first walk through a dragon.

The abandoned hospital whose elaborate ghost stories cover up the dirty truth - an uneventful sanitation issue and other mundane reasons for its demise.

Step into a cartoon at this Seoul café that aims to evoke a two-dimensional scene.

This French cemetery houses some of the most exquisite examples of funerary art in Mexico City.

This once-abandoned mansion is now a dreamy event space.

A museum in the former home of Marxist revolutionary Leon Trotsky.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

The forgotten mummies of Dakhla oasis.