国产免费在线观看视频播放中文字幕_国产一在线精品一区在线观看_樱花动漫Since the dawn of civilization through modern times, humankind’s capacity for cruelty and darkness has known no bounds. DARK MARVELS is a documentary series that explores the history and engineering behind the world’s most diabolical inventions. From devious torture and death devices, to terrifying weapons of war, sinister spy tools, and games that kill, these are the fascinati...　　Since the dawn of civilization through modern times, humankind’s capacity for cruelty and darkness has known no bounds. DARK MARVELS is a documentary series that explores the history and engineering behind the world’s most diabolical inventions. From devious torture and death devices, to terrifying weapons of war, sinister spy tools, and games that kill, these are the fascinating origin stories of the innovations that emerged from the darkest recesses of the most wicked minds.