The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

A museum chronicling pioneer life constructed over Interstate 80.

Miraculous tree that seems to sprout out of solid rock.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

The largest outdoor art gallery in the Northwest United States.

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

Home to the deepest rift anywhere on Earth.

The last SR-71 ever constructed.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

This former open-pit manganese mine is now a massive graffiti canvas.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

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

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

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

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

A plaque commemorates the spot in the Oregon woods where the first-ever Geocache was hidden.

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.