This 19th-century museum inside of a lighthouse is only accessible during low tide.

A lighthouse built to save lives that took quite a few with its treacherous location.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

A collection of colorful dinosaurs hidden in an actual rainforest.

The park preserves a single, rare species of carnivorous plant that spells doom for unsuspecting insects.

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

There's something big lurking beneath the surface of this tiny Oregon park.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

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

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.

A stunning landscape of bunkers that once stored chemical weapons.

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

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

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

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

It was once used as a classroom to teach mining skills to local high school students.

The mayor made the declaration in 2004.

America's largest man-made forest was planted in an effort to bring back the past.

This erect, phallic geological spire wasn't always named so domestically.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."