This black shoreline is made up of exploded lava particles.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

The first home of the doomed aviatrix Amelia Earhart.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

The world's longest known cave system.

Where the author wrote her beloved "Little House" books.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

"Polynesia on the Plains."

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

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

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

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

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

There are eight natural springs around town, each with a slightly different taste.

One of few remaining antique carousels with stationary animals in the U.S.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

Possibly the world's only drive-in movie theater with an attached motel.

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.