The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

The first skyscraper to include a Ferris wheel built into the facade.

Loyal fans of one television's most famous painters still come to pay their respects.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

This innocent-looking townhome is actually a subway exit.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A Prada store in the West Texas desert that is never open for business.

The world's largest model of our planetary system.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

An extraordinary collection of vampire-themed antiques lurks on the second floor of a store.

This large, circular tomb is the final resting place of the first emperor of Rome.

Established over a thousand years ago, this family-run teahouse continues to serve skewers of sweet rice cake to this day.

A bizarre house filled with an astounding array of collections.

The sunken structure looks like the victim of a catastrophic flood.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

A unique botanical garden housed in three giant geodesic domes.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.