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.