Explore the history of using salt to keep roads safe during winter.

Explore the enduring legacy of Black resistance, intellect and activism through the stories of five key figures.

After decades of struggle, three different innovators break the mold to release games that combine fun with an intellectual challenge: Scrabble, Clue and Yahtzee.

In the shadowed bayous of Louisiana's Tickfaw State Park, the legend of the Rougarou blurs the line between folklore and fear.

Discover the life of Mahatma Gandhi—India's "Great Soul." Through revolutionary nonviolence, the fearless leader helped liberate his country from British colonial rule.

Next week is International Holocaust Remembrance Day. Discover the unforgettable story of the American GIs who liberated Dachau concentration camp in this powerful documentary.

How Ted Kaczynski used his intelligence for evil and carried out targeted attacks that grew from his hatred towards technology.

Don goes deep beneath a Knights Templar stronghold in Turkey to explore a provocative theory that may link the fabled secret society to the Founding Fathers of America.

Discover these 10 incredible structures constructed by ancient civilizations and shrouded in mystery in this episode of History Countdown.