The elegant structure of this 19th century railroad bridge creates an illusion of infinity.

The "Heroine of Dunkirk" rescued over 7,000 Allied troops during the historic World War II evacuation.

This Tudor-era castle was once part of King Henry VIII's plan to protect England from invasion.

A winding cave grotto walkway built to provide employment for veterans after World War I.

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

This oak sculpture at the edge of a small woodland is nine feet tall and shrouded in mystery.

This Norman castle has been the scene of assassination plots, religious persecution, and Nazi conspiracies throughout its long history.

A house of bones — but nobody is quite sure to whom they belong.

A stone plaque and a winking pub name are all that remain to remember the victims of deadly 1836 avalanche.

Both church and state get put to the torch in this annual festival in the "Bonfire Capital of the World."

Now isolated, this church was once the center of a bustling village that succumbed to the Black Death.

A Victorian Fort built into the chalky cliffs that overlook the English Channel.

This mysterious chalk figure of a horse has been recreated and restored for more than a century.

Where the sleeping monsters of Scotland's oil industry are left to rust.

This remarkably intact, 260-year-old cargo ship is only visible at the lowest of spring tides.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

The Great Fire of London and the regulation of one-way streets both started in this alley.

On the eve of a condemned prisoner's death, this bell rang 12 times outside their cell.

This ancient Egyptian obelisk still bears the wounds of World War I.

The commemorative stone column conceals a secret laboratory.

A historic hill of tall tales, with one rather special tree.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.