This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

An enormous, inside-out glass globe built in 1935.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A terrific purveyor of natural history objects and curios.

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

Rumors of the occult haunt this upscale 1920s hotel.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

Final resting place of one of the classic authors of horror literature.

One Costa Rican island is so beset by illegal shark poachers that the local rangers have built an entire bridge with their confiscated gear .

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

Costa Rican accommodation resembles a crash site, but with a nice balcony.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

This Costa Rican topiary park is a surreal garden of unearthly delights.

Sloth rehabilitation center in the jungle of Costa Rica.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

Fiery-hot river rocks make soup sizzle at this restaurant showcasing indigenous Chinantec cuisine.

A hip bar decorated with walls of golden skulls.

Avoid gangster interaction while window-shopping.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."