Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

These free-roaming horses were once destined to disappear from the land.

A smaller model of the Da Vinci sculpture that took 500 years to come to life.

In which a local geological marvel becomes a quaint roadside attraction.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

This jail which was in service for over a century is now open for curious visitors.

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

A field of nothing but boulders which resembles a giant's gravel driveway.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

This park contains a number of standing stones meant to heal and inspire.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

These constructed wetlands naturally filter millions of gallons of treated wastewater every day.

Japanese gardens dedicated to the Japanese farmer that refused to throw in the trowel.

Dubbed the "smallest church in America," this tiny sanctuary was a local grocer's dream come true.

An early-19th-century hotel with a past that is steeped in the Civil War.

A statue honoring 44 continuous years of greeting passing ships.

"X" marks the spot of an echo chamber in the middle of a plaza.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.