This astronomical clock is the second oldest in England.

This former abandoned hospital, a complex of stunning 19th century buildings, once housed 2,000 psychiatric patients.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

The secret wartime bunker built on the platforms of an abandoned Tube station.

A perilous medieval road leading right into the sea.

Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

The last four extravagant street signs of London's historic banking street.

This macabre monument atop an ancient well gives a nod to a brutal episode in Scottish clan history.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

A curious collection of mechanical moving figures.

A sweet symbol marks the place where torturous executions were once carried out.

This Manchester laundromat is hiding something.

A 200-year-old prison that now houses a peculiar crime museum.

Abstract dinosaur models in London.

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

Hear the quietest sound from across the dome.

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

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

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

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

An 18th-century estate owner thought these cottages were an eyesore, so he artfully disguised them as a church.