Only known mainland rookery of the threatened Stellar sea lion.

A massive sea stack famous for its appearance in The Goonies.

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

The seamy, underground secrets of Portland's criminal past.

An emporium for the weird, creepy, rare, and just plain gross.

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

This large artificial waterfall in Washington state was merely an incidental byproduct of a technological megaproject.

People come from across the globe to swim in this lake believed to have healing properties.

Site of the greatest known waterfall that ever existed.

This scenic gorge is named after one of the most famous Bigfoot attacks in pseudohistory.

This dilapidated ship carcass covered in trees is a striking sight.

An extraordinary mixture of natural beauty and man-made phenomena.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

This set of hot springs also comes with fantastic views.

A creek tumbles over a series of step-like rocks to create this scenic water feature.

This landmark is a central figure in the Nez Perce origin story.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

A long and winding trail through history led to the current iteration of this mountaintop tower.

Two tall rocks sit at the center of this site, once the home of a large Ancestral Puebloan community.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

Unlike most arches, this geological oddity formed in a volcanic dike.

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

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."