A fantastic castle rumored to be the birthplace of King Arthur.

The largest greenhouse in the world is home to over one million types of plants.

This antique prison is a tourist attraction with a sordid past.

19th century tunnels burrowed under Liverpool.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The most loyal of little dogs, or a Victorian era publicity stunt?

Protecting the dead from opportunistic body snatchers.

This hospital once pioneered the use of electroencephalograms, but fell into maltreatment, abuse, and eventual abandonment.

World's largest working waterwheel has been around for over 150 years.

The remains of centuries of copper mining appear like an alien landscape.

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

On a site with a long military history, a 1980s shelter.

A hundred copies of Antony Gormley's naked body stare out across the water.

Pyramid shaped monument with a tall tale attached.

The tower was originally used as a chimney for the waste incinerator of St. John's Precinct and Market.