Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

This abandoned amusement park was built on a site with a dark history.

A giant 400-acre preserve in North Florida for displaced wolves.

The ruins of a resort and casino sit on the banks of this blue hole spring that pumps 70,000 gallons of warm, clear water every minute.

This natural spring not only claims to heal the wounded but it has also been willed to God.

This fountain was commissioned by a mother grieving over her son's passing.

A mountaintop space observatory that is certified dark.

A stockpile of childhood lunch pails turned collectibles.

All that's left of the quintessential "cabin in the woods."

An idyllic mineral hot springs facility with a more-than checkered past.

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

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

Visit this playground of waterfalls, caves and sinkholes.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

An abandoned town is hidden in Great Smoky Mountains National Park.

Enormous lake at the bottom of a unique cave system.

A historic gristmill that still produces flour and grits the old-fashioned way.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

This mansion turned restaurant was once a pitstop for Al Capone during his travels.