This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

This former factory has been transformed into a technicolor wonderland, where dozens of local artists have collaborated to create a real choose-your-own-adventure experience.

The juke joint where legendary soul artists ate, drank, and made merry.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

A vast array of tropical plants collected by a vacationing couple.

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

A park filled with vibrant mosaics created by more than 300 folk artists.

A giant donut stands as a popular symbol of Los Angeles iconography.

It may take some time to locate, but it's sure to warm even a heart of stone.

Former villa and estate of James Deering developed to preserve native tropical forests.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

A humid oasis combines recreation with exploration in a unique underwater cavern.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

It's a pretty creepy lock-up.

This collection of over 50 classic pinball machines awaits visitors to downtown Roanoke.

The first full-scale tunnel built in America is short but scenic.

Elvis's own personal tropical hideaway.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

This former maximum-security prison is creepy, sobering, and supposedly haunted.