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

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

London's old-school healing garden.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

A clock designed to run with perfect accuracy for 10,000 years.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

Surreal riveted sea forts once protected the Kent shores from German attack.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Banksy gives themself artistic license with this piece of London street art.

An ode to the classic piece of British street furniture.

All that remains of the medieval palace of the famous "Black Prince."

One of the tallest maypoles remaining in England in one of its smaller villages.

A picturesque garden with a surprising past.