At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

Climb right into the heart of this colorful Iceland volcano.

The most powerful waterfall in all of Europe.

This modern monument to pagan belief looks like it was transported straight from ancient times.

Walk in the footsteps of the gods and straddle two tectonic plates.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

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

Iceland's largest lagoon is home to stunning multi-colored icebergs.

Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

This theatre was made famous after Lee Harvey Oswald was captured inside watching a film.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

The final resting place of infamous outlaw Clyde and Marvin Barrow.

The final resting place of an outlaw, whose legend grew after death.

Now abandoned, this East Austin school for the disabled began as the "State Colony for the Feeble-minded."

Austin’s local mountain isn’t really a mountain at all.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

A tribute to the "toughest woman on the Texas frontier," who survived a famous battle and five husbands.

This eclectic Austin curiosity shop is home to all things strange and unusual.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

The oldest continuously occupied public building in the United States.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.