America's Wild West is home to abandoned ruins that attest to the strange, dark, and mysterious things that once happened here; experts investigate the secrets behind these desolate places to uncover how they were built and why they were abandoned. The segments of this special come from various episodes.  

Abandoned towers of a fearsome warrior civilization and a castle that was once a fairy-tale estate are now haunted ruins; experts investigate the secrets behind these desolate fortresses to uncover how they were built and why they were abandoned. This is a mashup of S05E03 "Haunting of Heartbreak Castle," S06E07 "Towers of Blood," and S07E05 "Factory of Death."