A fascinating little museum all about the rich history of Peru’s famous plant.

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

A collection of abandoned typographic signs from Berlin and beyond.

A kaleidoscopic warehouse-maze of handmade neon signs.

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

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A crumbling hospital from the 1850s on Roosevelt Island.

A terrific purveyor of natural history objects and curios.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

“Invented in Key West, Perfected in Brooklyn."

Ride the subways of yesteryear.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

The beloved home to all publications indie, erotic, and punky.

This historic hotel invented the chocolate brownie.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

This little-known national museum houses over 40,000 works of art from across the world.

Tucked away inside this concrete building is a church and its grand display of brutalist architecture.

One man's remarkable private collection of art from around the world.

This now abandoned restaurant provides some of the most amazing views of Lisboa.