What on Earth?

Season 11 Episode 5: Riddle of Sardinia Tower

Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate the relics of a declining ancient civilization that may have suffered a celestial catastrophe.

Genre:

Documentary

Seasons:

12

Episodes:

131

Actor:

Steven Kearney, Andrew Gough

Quality:

HD

Status:

Returning Series

First Air:

2015

IMDb:

6.4