An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

Three prestigious academic collections come together to create a world-class natural history museum.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This picturesque mansion has gone from opulent ruin to nature museum.

This legendary city has been a tourist attraction for centuries.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

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

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

Two insane asylum bodies embalmed by an amateur.

A historic coal mine that doubles as a museum and tourist attraction.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This abandoned amusement park was built on a site with a dark history.

These rows of World War II-era bunkers were the scene of some of the infamous Mothman sightings.

A Rodeo for Prisoners.

A mysterious find dredged from Louisiana waters.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

The crumbling remains of a 19th century fortess.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

An impressive collection of dollhouses and an homage to the frog-leg canning industry.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

Site of a former hidden treehouse in New Orleans.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.