Lionsgate

They are the backbone of a continent, towering granite peaks that have lured adventurers to the American West for centuries. For some, this rugged landscape yielded incredible wealth. For others, its only offerings were tragic death. In a tour of Colorado's spookiest places, we visit Cripple Creek Hotel, Manitou Springs, the frontier town of Buckskin Joe, Molly Brown's Denver mansion, and Estes Park--where phantoms still cling to a life long past in the Haunted Rockies.

What happens when the calculations of builders and engineers prove wrong and their constructs come tumbling down? In this episode, we examine the 1987 failure of the Schoharie Creek Bridge in New York; the partial destruction by a runaway freighter of the Riverwalk Marketplace in New Orleans in 1996; the roof collapse of the Rosemont Horizon Arena in Illinois in 1979; the deadliest grain-dust explosion on record in Westwego, Louisiana, when a grain elevator exploded in 1977; and the crash of...