Catacombs turned marketplace.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Hear the quietest sound from across the dome.

The curios of pharmacist and collector Henry Wellcome.

One part local history, 99 parts gruesome haunted house.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

Famously misunderstood wonder of the ancient world

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

Hidden beneath the streets of London is a secret subway that only carried mail.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

The sign at the garden gate reads: “These Plants Can Kill.”

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

These 20-foot jaw bones honor a time when the leviathan bones were a sign that whalers survived the hunt.

The view that inspired the scenes of Dracula's first landing in England.

The curious and tiny collection contains some very odd objects.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

WWII artifacts, including the building itself.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

This museum honors the young maritime hero who became an unexpected Victorian-era celebrity.

These upturned herring boats make nifty storage sheds for fishing goods.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.