Secrets of the Dead

Originally a supply depot for Union forces in Kentucky, Camp Nelson became the site where 10,000 Black soldiers trained in the Civil War. But in the war's last months, these formerly enslaved soldiers were brutally attacked by bitter Southerners. Their remains have never been found, and a team is dedicated to finding them to memorialize their service and heroism. Learn about the military base where these soldiers and thousands got their freedom papers.

In 2022, a terrifying discovery: a female skeleton dating from 1650, buried with a sickle across her neck and giant padlock on her toe — double protection to keep her from rising from the dead. All the evidence points to her being buried as a vampire... and she's not alone, with more than 50 deviant burials around her. Who was she, and what did these burial rituals mean?

Angkor was the capital of the Khmer Empire, which controlled much of the region between the 9th and 15th centuries. The stunning accomplishments of Angkor's great kings are evident, but the period preceding the foundation of their great city is shrouded in mystery. The discovery of an incredible hoard of stunning artifacts provides surprising new clues about this early Khmer society.

The discovery of gold and silver artifacts in Laos, dating to the early days of the Khmer Empire, leads scientists to investigate how the priceless objects were made and where they might have originated. On their journey, they retrace the steps of the ancient kings and explore the sacred landscape around Vat Phou to learn more about this ancient civilization.