Mysteries of the Abandoned: Hidden America

An eye-catching collection of graffiti covered structures that were once a pioneering entertainment attraction now stand derelict in the Mojave Desert; experts investigate and reveal the revolutionary remnants of America's first waterpark. Further segments of the episode portray the Smith Mansion in Wyoming, the Threatt Filling Station in Oklahoma, and the Miami Marine Stadium in Florida.

A beloved hospital in the Big Easy was once the site of heroic efforts by medical staff and volunteers to evacuate patients after Hurricane Katrina in 2005. Left in ruin, the historic Charity Hospital is being revitalized by another major New Orleans institution, Tulane University.

Scattered across the United States are abandoned structures, forgotten ruins of the past and monuments to a bygone era that reveal the secrets of a hidden America.

Get chills in a bleak communications hub that housed a California cult and then eye a secret US Navy arsenal in Florida.