Nuclear reactor created the plutonium used on Nagasaki.

See just what life was like in a 19th-century prospecting town.

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

The world's largest egg has been cracked a number of times over the years but has been repeatedly replaced.

Where Nor'easters go to die.

In Washington's Yakima Valley lies a town "where dinosaurs roam."

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

A stunning landscape of bunkers that once stored chemical weapons.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Tens of thousands of tiny birds swarm into one school chimney every fall.

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

A tourist attraction founded around a slumping cabin.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

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

World's largest porcine hairball sits in a collection maintained by Benedictine monks.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

According to legend, you must remain completely silent while passing this man-made mound or suffer the consequences.

1920's mining camp and environmental education center is serving to protect the surrounding forest, one of the last of its kind in the Pacific Northwest.

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

This perfectly preserved Chinese medicine shop was untouched for decades before being reopened as a museum.

World's only nuclear reactor operated by liberal arts undergraduates.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

Delightful disarray of found objects and clutter.

Featuring a casually threatening atmosphere along with dessert and coffee to die for.