
(Repeat) NOVA Minute: How to Speak Walrus
Feb 8, 2012 - 1:28
Radio and PodcastLive Radio & Podcasts
Egyptologist Mark Lehner thinks it took almost 20,000 people to build the Great Pyramids. But where did all those workers live? In this podcast, Lehner describes how he found evidence of a “lost city” on the Giza plateau...