Mysteries: Suicide Table Pictures

Don examines a piece of concrete tied to an infamous disaster, a mounted dog that prowled the lines in World War I, and an antique gaming table said to be imbued with a sinister curse.

At the Santa Clarita Valley Historical Society in Newhall, CA, is a fragment from the St. Francis Dam. When the dam failed in 1928, the floodwater killed almost 600 people.