"The Most Boring Road in the State."

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

These massive concrete balls were used to mine gold in Virginia.

An early 20th-century fruit warehouse home of an artistic and cultural renaissance in northeastern Washington.

A giant milk bottle from the 1930s beckons drivers to this diner.

Protected from the elements, these Native American rock paintings have survived approximately 250 years.

A small town market proudly displays numerous taxidermied animals along its walls.

Every drop of water in this 27-mile long reservoir was pumped up from the Columbia River using power from Grand Coulee Dam.

This historic steamboat is scuttled just a few hundred feet from where it was built over a hundred years ago.

A Roman-style column in Oregon hides a spiral staircase inside.

A grove of "candelabra redwoods" deep in California's Lost Coast.

A peculiar forest that was handcrafted for government experiments.

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

Part of a highway network meant to connect Miami to Montreal, this 10-mile stretch of road made from red bricks is still around 100 years later.

A mysterious castle built as a monument to lost love.

The highway's southernmost spot is a beloved local attraction.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

The smallest post office in the United States is no bigger than a broom closet.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

A couple turned their front yard into an artistic masterpiece.

An inconspicuous footbridge beloved by San Diego locals.