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

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

A kaleidoscopic warehouse-maze of handmade neon signs.

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

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

From here, the loch appears to take the shape of mainland Scotland.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

Britain's only herd of free-ranging reindeer.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

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

This Manchester laundromat is hiding something.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

The oldest inn in England served brew to the crusaders.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

A steep and winding road in the Yorkshire Dales passes by these deep natural potholes.

England's largest white horse isn't even white.

Reputedly based on the tomb of Jesus Christ, this crypt is the oldest surviving structure of any cathedral in England.