A 120-year-old legend concerning an empty circular patch in the North Carolina woods.

No matter what it might seem like on film, most scenes filmed on a plane are filmed at this LA studio.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

This large midwestern cavern features impressive rock formations and an underground waterfall.

This popular bar has been blurring the line between normal and edgy for more than 75 years.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

America's only nuclear missile silo open to the public.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

The loneliest island in New York.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

A storybook European village in Berkeley.

Mysterious glowing orbs float through the desert night.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.