The structures have survived all these years of natural weathering and damage inflicted by modern mankind.
Through the magic of computer simulation, the viewer can experience the pyramids as they must have appeared to the ancient Egyptians who built them.
Ultimate Guide: Pyramids also provides information on how the pyramids might have been constructed.
Documentary that goes inside the framework of pyramids to show how these structures have changed over time, starting as flat-roofed houses and evolving into temples and grave sites.
The program reconstructs how these fabled pyramids and their cities must have looked at the peak of their civilizations.
Video (Playlist): http://www.youtube.com/view_play_list?p=BAC872510149DEBC