NationalGeographicExplorerAlbertLinventuresintotheGuatemalanjungletoexplorehowanewhigh-techtreasuremapisrevealingtensofthousandsofancientruins.Now,dozensofarchaeologistsareheadingonavoyageofdiscovery,exploringlostruinsforthefirsttimein1500years.Andwhatthey'refindingisrewritingthehistoryofoneoftheworld'smostmysteriousancientcivilisations-theMaya.　　Episodesinclude…　　1SecretsoftheSnakeAltar　　2SecretsoftheUnderworld　　3SecretsoftheSunGod　　4SecretsoftheLostCity