Shocking Artefacts And Human Remains Found In 2000 Year Old Pyramid | Blowing Up History

In Mexico, investigators are unraveling the secrets of a 2,000 year old mystery — why was the ancient city of Teotihuacan built and what are their pyramids hiding? Subscribe to Discovery UK for more great clips: http://www.youtube.com/subscription_center?add_user=DiscoveryTV Follow Discovery UK on Twitter: http://www.twitter.com/DiscoveryUK