DARKEST SECRETS OF THE USA REVEALED | America's Book of Secrets Marathon

Uncover the dark American mysteries that lurk just of of site, in this America's Book of Secrets marathon. Watch the season finale of America's Book of Secrets, Tuesday at 9/8c, and stay up to date on all of your favorite The HISTORY Channel shows at #AmericasBookofSecrets Subscribe for more HISTORY: Check out exclusive HISTORY content: History Newsletter - Website - Facebook - Twitter - HISTORY® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming.