The largest wooden building in the world now houses a fascinating collection of aircraft.

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

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

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

The flow from this waterfall sometimes comes out of springs below its rim.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

An impressive waterfall nestled in the cliffs of Idaho's Snake River Canyon.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

This museum glorifies the humble potato.

Home to the deepest rift anywhere on Earth.