Austin’s local mountain isn’t really a mountain at all.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

Decaying military base deactivated in the 70s is now visited by urban explorers and military enthusiasts.

Crumbling hotel echoes with the sounds of the '30s.

A registered historic landmark shrouded in unsettling local legends.

This former Texas landfill is flush with 300 million-year-old fossils, all fit for the taking.

A grove of colossal man-made flowers built to collect the sun's rays.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

An emerald-green grotto just a short trip from Austin.

A large stone map of Arkansas awaits visitors to its highest point.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

The only diamond mine in the world where you can keep what you find.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

A castle-inspired apartment building that has stood in Birmingham since 1927.

In 1911 this intersection was called "the heaviest corner in the South," and outlandish claim that only grew wilder over the years.

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

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

This little-known memorial honors those who have donated their bodies to medical training.

Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.

The terrified face of Henry Wells is etched on this garret window.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Once one of the largest producers of pig iron in the world.

This small hut in the middle of a parking lot was once the wooded sanctuary of the 'Hermit of Montrose.'