One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

A beautiful little museum hidden away in the heart of Barcelona holds a treasure trove of Ancient Egyptian artifacts

Years of archaeology, just chillin' by the water cooler.

This bridge is haunted by the ghost of a distraught mother.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

A curious blend of taxidermy, antique tools, creationism, and a purported antediluvian rock.

It's believed Matilda Fitzwalter's life was the basis for the famed literary figure.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This 1,700-pound edible sculpture is way better than your average chocolate mousse.

Explore the dark underground corridors of this graffiti-covered former military fortification.

One of the most acclaimed eateries in Arkansas is a two-table diner on the ground floor of a family home.

Why have you never heard of the second most popular tourist site in New York?

A hundred-year-old museum filled with giant physics toys and experiments designed by grad students.

Where America's first doomsday cult awaited the end of the world.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

A historic house devoted to the teachings of a 1700's prophetess and her mysterious box of revelations.

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

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

America's most famous piece of self-built architecture.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

A beautiful oddities shop crammed with strange and morbid curiosities.

A dollhouse full of taxidermy rodents, each one handcrafted and given a sordid past.