Charleston's historic city jail once held everyone from pirates to Civil War POWs.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

This collection of grinning ephemera has grown from basement to Brooklyn.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This super steep hike ascends 2,000 feet in less than a mile.

Canyon walls shrouded in ferns.

Pyramid home to an obscure religious group that practices modern mummification.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

Despite sitting firmly in the global cradle of the Church of Jesus Christ of Latter-day Saints, this Hare Krishna temple is host to one of the largest color festivals outside India.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Incredible sculptures inspired by obscure passages from the Bible.

Dubbed the "Blade Runner dragon," this buzzing neon sign is a beloved local icon.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

This lonely gas station has stood at this location since 1917.

These markers are used to determine the ground stability of the Strip.

The ruins of a military outpost from the 1860s form the centerpiece of a Nevada state park.

Two craters, which probably erupted within the last 1,500 years and are now filled by alkaline lakes, represent Nevada's youngest known volcanic activity.

Drive up a paved road into "Nevada's Yosemite" for exquisite views and mountain hiking in an alpine setting.

This 18-foot-tall steel lotus is a meditation on ecological crisis that originally appeared at Burning Man.

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

This beloved roadside attraction welcomes visitors with his signature neon smile.

The self-made house sculpture of an outsider artist who named himself "Chief Rolling Thunder."

This cave was hidden for thousands of years, storing the worldly goods of ancient Native Americans.