A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

Stay overnight in the world's most sleekly designed rabbit hole, free of charge.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

Cold storage for agricultural biodiversity.

Walk behind a 50-meter-high waterfall.

An intricately carved Viking church overlooks a glistening fjord.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

A stunning silver lining to global warming's gloomy cloud.

Home to three historic ships from the age of Vikings.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

Walk 2,300 feet above the ground on the "Troll's Tongue."

A serpentine highway twists and turns over the treacherous Norwegian Sea.

Where Santa Claus held up a Texas bank and started a statewide manhunt.

A prison-like structure guards the remains of a notorious Old West outlaw.

One nutty businessman’s unique tribute to an ancient tool.

Nestled in the heart of a Texas town is a dreamy secret garden dating back to the 1940s.

Amazingly detailed marble cinerary urns that once held the cremains of Roman elite.

The house where the pulp fiction writer and Conan the Barbarian creator lived.

Seven flags adorn this Texas museum, one for each of the powers that have ruled the area.

What was meant as an innocent piece of art has earned a reputation as the "mansplaining sculpture."

The water in this preserved area spawns vegetation that gives it a deep green color.