The trials and tribulations of marking Poe's grave.

Within this lovely Richmond cemetery lie the remains of famous Virginians and some of Edgar Allan Poe's most beloved family and friends.

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

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

Eighteen miniature death-scene dioramas.

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

This South London cemetery holds the remains of more than 15,000 people.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Dramatic river bend surrounds a natural red-rocked pedestal.

A 16th-century horror show built in a lovely Italian garden.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

A swing to dangle you off the very edge.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

Medicinal spa created with the discharge from a geothermal energy plant.

An artsy hidden staircase leads to breathtaking views of San Francisco.

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

World's largest collection of serial killer artwork and other macabre exhibits.

On the Oregon coast there is a natural hole that seems to be draining the sea.