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

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

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

The highest peak in all of England is plagued by dangerously fickle climate shifts.

Huge winged monument in the United Kingdom.

Eighty million natural history specimens call this gargantuan museum home.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

A genuine Little Shop of Horrors.

These medieval tunnels provided water to the city above through centuries of civil war and plague.

Fascinating town where normal life interfaces with the occult.

Obscene versions of this artist's work are the most popular.

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

The UK's oldest theme park slowly slips away.

The attic of a four-century-old canal house hides a clandestine church.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

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

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

Home of an evil witch famous within southern folklore.

The rocks of a certain area of Butte, Montana give off a musical ring when hit.