Unsealed: Alien Files

Season 2 Episode 14: The World Grid

Pyramids are found all over the world and from different time periods in human history. Did humans build the pyramids by themselves - or did they have help? Some experts believe pyramids across the world are part of a grand alien design.

Genre:

Documentary, Reality

Seasons:

4

Episodes:

82

Cast:

Quality:

HD

Duration:

20 min

First Air:

2012

Rating:

6.9