This mile marker stands at the unofficial end of a highway built to defend the United States from a Japanese invasion during World War II.

A trading post in the North Pole where children send letters.

The king of U.S. high points towers over every other peak on the continent.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

Considered by many to be one of the most dangerous highways in Alaska.

The now-serene site of the largest earthquake ever recorded in North America.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

From working out of his garage to the James Beard semifinals, one Tucson baker has kept his fan base—and his grains—local.

Despite a recent paint job, the factory still sits empty.

Browse an impressive collection of passenger and military aircraft dating back to World War II.

Legend says train robbers stashed their gold within the depths of this unusual cave.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

A museum devoted entirely to the rattlesnakes and snake-related art.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

This popular pilgrimage site offers a hole filled with holy healing dirt.

Step back in time at an outdoor living history museum where New Mexico's cultural traditions come alive.

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

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

The oldest continuously occupied public building in the United States.

A unique geological area spiked with wind-carved rocks that resemble teepees.