<p> National Geographic Explorer Albert Lin ventures into the Guatemalan jungle to explore how a new high-tech treasure map is revealing tens of thousands of ancient ruins. Now, dozens of archaeologists are heading on a voyage of discovery, exploring lost ruins for the first time in 1500 years. And what they're finding is rewriting the history of one of the world's most mysterious ancient civilisations - the Maya.<br/> Episodes include…<br/> 1 Secrets of the Snake Altar<br/> 2 Secrets of the Underworld<br/> 3 Secrets of the Sun God<br/> 4 Secrets of the Lost City</p>
