A 1,700-year-old death mask from Siberia reveals ancient cranial surgery, shedding light on advanced medical practices of the Tashtyk culture. In Norway, a hidden World War II coastal battery on Svaerholt Cape unveils the harsh realities of wartime occupation and military ingenuity. Explore dark rituals of the Magdalenian Stone Age, where cannibalistic funeral practices were uncovered in caves across Europe. NASA scientists investigate a baffling Arctic mystery: the mass deaths of caribou on remote islands, spanning decades.