A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

This is not your typical jungle gym.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Curious cave that stays a cool 56 degrees all year long.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

Less a museum than a bizarre fantasy world created by artists and engineers.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

This massive marble memorial was built bit by bit either out of devotion or spite, but at the expense of the surrounding town.

One of the stops along the fateful journey of the Donner Party.

A former Army airfield is home to one of the largest aviation museums in America.

A Google software engineer's Easter egg led to what may be the world's most unusual saved screenshot.

The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

A landscape of massive spherical boulders are the main attraction in this Kansas State Park.

During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

A modern mechanical planetary system, part of a 10,000 year clock.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Olfactory delights in San Francisco's Botanical Gardens.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A little-visited waterfall in an otherworldly landscape.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.