The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

An old spiral fire escape dangles above a public courtyard in Midtown Oklahoma City.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

A notorious punk house turned co-op.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

This hidden pre-Columbian rock art depicts a whale hunt.

This iconic hilltop church doubled as a lighthouse in the 19th century, guiding ships into the port of Valparaíso.

This abandoned hospital is one of the most haunted places in Costa Rica.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

The trials and tribulations of marking Poe's grave.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

The curios of pharmacist and collector Henry Wellcome.

One part local history, 99 parts gruesome haunted house.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

A tongue-in-cheek arcade where the games are based on everyday life.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Yemen's "Stone Palace" looks like it was carved right out of the tall stone column on which it is built.

A city built from mud and known as the "Manhattan of the desert."