A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

A book bound in the skin of an infamous criminal, along with countless other specimens.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Curios, scientific antiques, oddities for sale.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

When ecosystems collide in the arid Southwest.

Even in death, he's still your huckleberry.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A downtown park built on top of unclaimed graves.