A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

Enormous lake at the bottom of a unique cave system.

Beautiful waterfalls grace a canyon visibly torn by a violent tornado.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

These strange large stones served as a campsite and lookout post for generations of Native Americans.

This North Carolina store preserves a historic moment in America's movement for racial equality.

A mailbox that saved a nature reserve.

A historic covered bridge, only one of two remaining in North Carolina.

This woodland architectural installation acts as a camera obscura for the heavens.

The only free-standing, vertical sundial in the US was keeping standard time before it was even invented.

One man's extraordinary topiary garden in a small South Carolina town.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A toxic ghost town sitting atop a massive coal fire.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

A ghost town at the airport is now a refuge for blue butterflies.