If all members were present at the table, a sixth of the world's wealth would be under the same roof.

This folk art compound was built by a fortune teller on the advice of three people from the future.

Bad farming practices caused this unnatural natural wonder.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

A forgotten sea village stands silent after hurricanes deemed it obsolete.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This Taiwanese promontory is covered in otherworldly hoodoo formations.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

North America's oldest authentic African Village.

Dedicated to the history of the health sciences.

4,000 monkeys used for medical testing on an island off of South Carolina.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

This "Plant Farm Museum" is home to the divinely inspired and visionary outsider artwork of Reverend Howard Finster.

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

A bizarre roadside attraction and the first instance of miniature golf in the world.

More than five miles of underground passageways.

One person's lost luggage is another person's treasure.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.