A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

A famous burial ground with a history both grim and literary.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

Eighty million natural history specimens call this gargantuan museum home.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

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

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

The graves of a Connecticut family thought to have been plagued by a vampire.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Step into the cool deep past and unknown future of who begat who.