The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A historic arboretum and non-conformist, non-denominational park cemetery.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

This former estate of a fascist leader is now a burnt out ruin leading to a system of secret tunnels.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

The largest of London's subterranean rivers and once a mad, bad center of London life.

The final resting place to 300 Victorian-era pets hides inside the city park.

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

Astonishing collection of helmets, scientific instruments, and medical models.

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

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

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

This studio was home to David Bowie's first single, even if it did turn away the Beatles.

A downtown park built on top of unclaimed graves.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

Public access to clean drinking water was an instant hit among the masses.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

Dictionary Johnson’s favorite feline.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

This historic London residence was once the womb of Scientology.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.