The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

The only road through the heart of Glacier National Park.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

The world's last remaining store of its kind.

This natural marble cave is one of only five national monuments in Oregon.

A volcanic fissure over two miles long and up to 70 feet deep.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

The longest continuous lava tube in Oregon.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

This frequently-photographed waterfall takes only a short hike to visit.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Only known mainland rookery of the threatened Stellar sea lion.

Its 27 graveyards represent the many nationalities and ethnic groups that voyaged to this wilderness in the late 19th century.

A fine, large-aperture telescope available for public use.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

Four abandoned towers hidden above the Douglas fir forest in Washington.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

The highest point in Washington state is a volcano covered in glaciers.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

The illuminated falls are a gem in North Cascades National Park.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Stroll through a wonderland of stupendous moss-covered trees.

Thousands of years ago, Indigenous people painted images onto these canyon walls that are still on display today, provocative, mysterious, and enduring reminders of the people who lived here long ago.