Don Wildman inspects a bizarre acorn-shaped sculpture that commemorates an otherworldly event; the world's smallest skyscraper, which was at the heart of an outrageous scam; an engineering wonder inspired by an eccentric figure.

Host Don Wildman explores a colossal mountain where a hero in disguise took on the KKK; investigates the grave of politician Huey Long; and takes in a bridge that found itself at the center of the struggle for civil rights.