A walk through the historic city center, under the streets of Seattle.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

New York's oldest magic store.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

World's first "penitentiary," meant to be humane, drove men insane.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

This ancient octopus-like tree was saved from destruction thanks to shady reporting.

Town of spiritualists and mediums in Florida.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

The private clubhouse for the members of the Academy of Magical Arts.

This frequently-photographed waterfall takes only a short hike to visit.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

A strange house built only at night, with rumored mystic inspiration.