America Unearthed

Season 2, Episode 3

Episode Title: Great Wall of Texas

Air Date: 2013-12-14

Overview:

Since the 1800s, the City of Rockwall, Texas has had a mystery it's been trying to solve. Allegedly, the town was built on a massive rock wall that was constructed by some ancient civilization...or even giants. Could it be true? Scott Wolter conducts a massive excavation of the wall to figure out who--or what--created this wall and the controversy surrounding it.