Over 60 chemical plants and oil refineries sit in a 15-mile-wide section outside town.

Shocking dioramas of human torture, meant to promote human rights awareness.

Various sculptures are a rotating exhibit in this small town.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

The world's largest commercially available hamburger is complete with 15 pounds of lettuce, 30 pounds of bacon, and 36 pounds of cheese.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

A snapshot of the city's fascinating voodoo culture.

What began with a single, 357-pound chunk of the Canyon Diablo meteorite grew to be an impressive collection. 

The winter home of millions of migrating monarch butterflies.

Rare recess caves fill this unbelievably beautiful Ohio park.

This amazing ancient cave was kept secret for seven years to protect it from the public.

The colorful soil of Iran’s "Rainbow Island" attracts artists and nature lovers.

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.

A modern-day wunderkammer dedicated to Indianapolis history, Afrofuturism, and musical vibrations.

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

One man's lifelong obsession with death.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

England's most notorious suicide spot.

A trash dump made beautiful by nature's power.

A grove of "candelabra redwoods" deep in California's Lost Coast.

This Catskills museum preserves stumps from the earliest known fossil forest on Earth.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

A boat ride through utter darkness, lit only by headlamps, reveals an emerald green pool locals believe is sacred.