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

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

The earliest known map to show America, discovered by accident at a Paris bookshop.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

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

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

Down a pint of ale where the Bishop of Ely's servants slept in 1546.

Dine at a legendary after-hours joint frequented by David Bowie and Iggy Pop.

One of the oldest surviving bars in the United States, located at the site of the last skirmish of the American Revolution.

A Ukrainian church canteen doles out hearty fare in an East Village basement.

Elaborate patterns adorn the city's disappearing traditional architecture.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

Puerto Rico's oldest rum producer started its 140-year-old business with "a little barrel."

An enchanting natural wonder in Puerto Rico's Camuy River Park.

The world's second largest single-dish radio telescope, once used to contact E.T.

This small primate research island is teeming with playing, fighting wild monkeys.

The world's brightest bioluminescent bay.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

A small house sits between two huge rocks, with its back to the sea.

At this studio, musicians, engineers, and quite possibly a music-loving ghost carry on Puerto Rico's musical traditions.

This tiny home was originally a narrow alleyway.

A cool dive bar, off the beaten track.

The wild west is still alive and well at this authentic mining town watering hole.