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

The only medieval bridge in Britain with its defensive tower still in tact.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

A historic observatory precariously perched at the "Top of Europe."

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

Hundreds of skulls and bones at the largest skeleton museum in the country.

Electrical pylon in the shape of Disney's beloved mouse.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

Many of the murals covering this sleepy Florida town hide some sort of intentional error.

Given just one more year to live, Conrad Schuck built his dream house in Bartow, Florida.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A haunted hill that supposedly defied gravity.

A thousand year old oak tree survives in Liverpool.

The Liverpool street made famous by the Beatles is real.

The quiet field that inspired one of the most famous songs of all time.

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

The longest hedge maze in the world.

This tranquil churchyard in the heart of England’s mining country whispers tales of both triumph and tragedy.

A petite castle folly in the English countryside.

Where, exactly, the great aviator completed her transatlantic flight has caused some trouble in Wales.

This charming railway is one of the oldest and steepest funiculars in England.

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

Centuries of human activity have forged an eerie landscape of ruins and craters on an exposed and windswept hilltop.