Historians and scientists search for insights into the origins and significance of some of the most enigmatic relics and mysteries known to man. Discover five of the world’s greatest treasures, all with remarkable secrets that have remained hidden, until now. Treasures Decoded, season 3 examines five mystic lost cities, America’s Hidden Pyramid City, Dead Sea Treasure Map, The Lost City of the Pharaohs, King Tut’s Tomb, The Hidden Chamber and Search for the Holy Grail. Each lead will be scrutinised by experts using a range of new techniques including state-of-the art forensics, which will unlock the mind-blowing truth for the first time ever. Filming with archaeologists, historians, scholars, and scientists, no stone is left unturned in search of answers. In this new series, explore the history and possible implications of exposing the fascinating truth about each city.