Episode #1.1070
Description: 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.
Genre: Documentary, Comedy, Family
Year Released: 2013
First episode air date: February 11, 2013
Genre: Documentary, Comedy, Family
Year Released: 2013
First episode air date: February 11, 2013