An ancient Viking village in North America that predates Columbus by 500 years.

Town of spiritualists and mediums in Florida.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

The most powerful waterfall in all of Europe.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

The longest navigable underground river in the United States is home to countless blind and albino animals.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

A collection of Witchcraft artifacts and occult paraphernalia started by the leader of the Long Island Coven.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

An encyclopedic collection of mammal penises.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

An eclectic trailer park retreat in the middle of the California desert.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Despite the ever pressing encroachment of urban sprawl this grand New Orleans manse still stands.

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

An unassuming secret door once led to a legendary watering hole.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.