One of the best places in Florida to spot rare, carnivorous pitcher plants.

Tucked away atop a quaint Alabama pharmacy is this tiny display of antique medical tools.

Alabama has a fiberglass Stonehenge. With apologies to Spinal Tap, this one is full-size.

Enormous lake at the bottom of a unique cave system.

This replica of the Greek structure is in the heart of Nashville.

This defunct, fortress-like prison has been the setting for several movies.

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

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

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

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

Mile-long cave system near Great Smoky Mountains.

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

The water in this preserved area spawns vegetation that gives it a deep green color.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

Two massive and unstable sinkholes are yearning to unite, and their consummation could be catastrophic.

Adobe ruins punctuate the beauty of an 800 foot canyon carved by the Canadian River.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

This towering volcanic plug stands out among the dramatic formations that dot this otherworldly desert valley.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.