This trail follows unique stone railroad tracks and a historic waterway to the south coast of Devon.

It's believed King John of England stayed at this 13th-century castle before riding off to sign the Magna Carta.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

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

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

Ornamented with "Bristol Diamonds," this exotic shell grotto is considered to be the finest surviving example from the eighteenth century.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

There are hundreds of secret WWII bases hidden in British forests. Built to fight a Nazi invasion, they remained unknown for decades.

Puzzles within puzzles hide a golden treasure in this hedge maze.

A petite castle folly in the English countryside.

Built by the patron saint of illusionists this Elizabethan manor house is riddled with secret cubbies for hiding priests.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

According to legend, this bell once belonged to a kingdom now lost beneath the waves.

Led Zeppelin wrote some of their most iconic songs at this little 18th-century Welsh cottage.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

A subterranean playground in an abandoned slate mine.

The stately remains of Llywelyn the Great's mighty fortress.

This pub can leave even the sober feeling slightly unsteady.

All that remains of the only English cathedral destroyed in the Protestant Reformation.

This ruin in a suburban park may be the place where Shakespeare's "A Midsummer Night's Dream" was first performed.

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.