An urban laboratory.

The first of the iconic American roadside attractions lives on as a college mascot.

This historic national park is covered in the stunning ruins of red rock pueblos.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

Ancient pueblos built into the base of a natural canyon wall.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

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

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

Two massive rock outcroppings on the Oregon coastline.

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

Spectacular volcanic cliffs along the Crooked River invite hiking, rock climbing, and photography.

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

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

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

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.

Shakespeare has been brought to life in this open air theater for the better part of a century.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

340 bicycles, 65 feet high.

California's own majestic geyser is powered by a subterranean volcano.

A sculpture dedicated to Napa Valley's oldest mineral water company.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

The largest drain hole in the world.