地底大探险 Secrets of the Underground(2017)

标签：

纪录片

类型：

电视剧

导演：

主演：

Rob Nelson

评分：

9

剧情：

Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre geological occurrences that offer glimpses into our history....