Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

A cemetery housing wild west legends in South Dakota.

This holy goods emporium is where priests go for a little retail therapy to outfit their churches.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

Bananas are often left for the first monkey America ever recovered alive after being launched into space.

An engraved boulder marks the spot where Patsy Cline's life ended in a plane crash.

This structure among the trees was the result of divine inspiration.

Enormous lake at the bottom of a unique cave system.

Everyone and everything one man ever loved and lost, now stare into the East for all eternity.

More than five miles of underground passageways.

The secret city built by the Manhattan Project.

Famous for its bio-luminescent inhabitants, known as "dismalites."

148 feet long and in the middle of a verdant forest.

Veritable museum of 20th century country music history.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Visit this playground of waterfalls, caves and sinkholes.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

A key producer of charcoal iron in the early 1800s, the structure still stands today.

Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.

The small cave that housed Tennessee's "first citizen."