An alley way dedicated to graffiti and street art is a constantly changing street gallery.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

This massive mushroom has spent centuries eating its way across a huge swath of Oregon.

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

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

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

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

An obscure waterfall that looks like something out of a fantasy novel.

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

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

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

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

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

New fungal and bacterial species call this deadly lake home.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

One man's quest to save his town with a trail of record-breaking sculptures.

The remnants of an early American attempt at missile defense.

A sculpture for the sun and stars, created by Nancy Holt.