A fantastic castle rumored to be the birthplace of King Arthur.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

London's smallest police station is barely the size of a phone booth.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

The longest hedge maze in the world.

Hear the quietest sound from across the dome.

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

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

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

The anatomical-pathological collection of a man who changed surgery.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Famously misunderstood wonder of the ancient world

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A student driver's nightmare.