scrt

DVD. Secrets Of Lost Empires Colosseum Ancient Romans flocked to this massive amphitheater by the tens of thousands, eagerly awaiting a bloody spectacle. As each gory show played on, the audience was sure to stay cool-thanks to a billowing canopy that protected them from the blazing Mediterranean sun. But how did the Roman builders completely cover the Colosseum? Even today's engineers don't usually attempt to...

DVD. Secrets Of Lost Empires Did they do it with mirrors? That's one of the more bizarre explanations NOVA looks into while trying to reconstruct the mysterious building techniques of the Inca, the remarkable civilization who ruled the Peruvian Andes 500 years ago. "The Incas had...no arch, no wheel, no codified mathematics," marvels one anthropologist. "They couldn't even write." So how did they erect their...

DVD. Secrets Of Lost Empires The civilizations of the ancient world left behind awe-inspiring examples of their engineering genius. Yet few clues remain to tell us just how, with limited technology, they achieved their extraordinary feats. To uncover the secrets of such Herculean labors, NOVA sent teams of experts to five archeological sites. The challenges? To actually test their building hypotheses-using traditional techniques. Pyramid takes...