Lost Treasures of Arabia
2 full episodes that National Geographic Channel posts free on National Geographic, its own YouTube channel, in the order their own titles number them. Each plays in YouTube's player, with YouTube's ads, loaded only when you press Play on its page.
Full episodes
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Unearthing the Ancient City of Dadan (Full Episode) | Lost Treasures of Arabia | National Geographic Free with YouTube's ads, posted by National Geographic
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Excavating Ancient Cities of Petra & Hegra (Full Episode) | Lost Treasures of Arabia | Nat Geo Free with YouTube's ads, posted by National Geographic