What on Earth?
Ancient Rome's El Dorado (11x10)
Air date: Aug 24, 2022
Aerial archaeologists capture bizarre, spider-like markings etched deep into the mountains of Northern Spain; experts investigate an ancient site that contained one of the largest and most important gold mining operations of the Roman Empire.
- Premiered: Feb 2015
- Episodes: 163
- Followers: 23
- Running
- Science Channel
- Tuesday at 21