Dive into the fascinating history of the ancient Romans in this MEGA episode of Lost Treasures of Rome. Featuring three, full episodes: Secrets of Rome's Great Wall Experts investigate Hadrian’s Wall, the biggest structure Rome built, to reveal the secrets of life and death on the ever-changing edge of empire. Pompeii's Lost Twin: Herculaneum Experts investigate Herculaneum’s grisly skeletons and uncover what happened in the deadly final hours after Mount Vesuvius erupted. Rome's Sunken Secrets