One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

A 60-room castle constructed by a horse-racing heir.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

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

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

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

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

This dry lake bed contains the oldest known petroglyphs in North America.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

The longest living non-clonal organisms on Earth.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.

One of the last remaining movie theatres in the country that features a rear-projection system.

This supermarket is suspended 25 feet above an interstate highway.

The world's largest piece of copyrighted artwork.