What on Earth?
Riddle in the Ruins
Season 3 Episode 4 of 20
Strange black holes appear near Egypt's pyramids, ruins in Peru suggest the Incas knew more than may be imagined, and a mysterious red swarm invades a beach in India
What on Earth? airs on Sky History HD at 3:00 AM, Sunday 20 July. (Subtitles.)
Topics
News ➝ Current Affairs
Documentary