A tunnel with windows, so you don't miss out on the impressive views.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The fifth-longest natural arch in the world, and the longest outside China.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

This large, castle-like structure is hidden amid the mountains on the grounds of the Utah State Hospital.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

A wild west land agreement was etched right onto this historic Idaho stone.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

A sweet symbol marks the place where torturous executions were once carried out.

A 18th century graveyard and its astonishing cortege of macabre iconography.

The most loyal of little dogs, or a Victorian era publicity stunt?

Protecting the dead from opportunistic body snatchers.

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

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The elaborate crypt where Peruvian heroes of the War of the Pacific were laid to rest.

Now containing the bones of the actual conquistador, instead of someone else.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.