One of the ghostly stops along Route 66.

One of the oldest living oak trees in the Southeast.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

An inconspicuous footbridge beloved by San Diego locals.

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

Crumbling ruins mark the site of a couple's grisly murder in the woods.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

The site of murders and Satanic cult gatherings.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Moonbows over Kentucky.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

This massive redwood tree has a hole in the base big enough to drive through.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Legends surround this jagged rock formation in the New Mexico desert.

A stealthy Apache hideaway that became the haunting site of a mass grave.

Stay in a room with a view... of the bottom of the ocean.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Abandoned bridge hidden deep in the San Gabriel Mountains.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

The highest bridge in America was built for an almost unnervingly small amount of money.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A haunted hill that supposedly defied gravity.