The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

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

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.

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

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

A cemetery housing wild west legends in South Dakota.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

A fitting attraction for the corn capital of the world.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A quirky Poe-themed joint on an island keen to celebrate its overlooked connection to the famous writer.

Oldest unrestored plantation house in America that is open to the public.

The secluded beach getaway from Wes Anderson's dreamy summer romance.

As state high-points-by-elevation go this spot is one of the lowest, but for years it was also the hardest to climb.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

The only presidential monument to display a late POTUS's actual casket.

The final resting place of the most famous sharpshooter.