- Created By
- First Aired on
Oct 20, 2019
- Popularity: 5.7519
- 11 votes
- Networks
- (US)
- Production
National Geographic (US)
- Status: Ended
Show Ended
2 seaons till Nov 24, 2019
Last episode: Inca Island in the Sky
Seasons & episodes
Total 2 seasons, 10 episodes

Season 1
Aired
Episode 1Fortress of the Knights Templar45 min
Albert Lin travels to Israel in search of the lost fortunes of the mysterious Knights Templar - warrior monks who ruled the Holy Land through blood, God and gold. Using cutting-edge technology, Lin investigates the hidden Crusader city and the secret tunnels that lie beneath it to discover their lost world, their gold and the secrets that made them so ruthlessly successful.
Episode 2Ghost City of the Pacific45 min
Albert Lin travels to Micronesia, in the heart of the Pacific Ocean, to uncover the ancient island city of Nan Madol. Exploring the tombs, temples and ritual sites, all built on man-made islands now shrouded by centuries of jungle growth, Lin discovers not just a city but an entire ocean continent spanning thousands of miles.
Episode 3El Dorado City of Gold45 min
Albert Lin travels to Colombia to find out the truth about the legendary city of El Dorado. He explores the ruins of Ciudad Perdida in the Sierra Nevada mountains.
Episode 4Stonehenge45 min
Albert Lin uncovers a lost city that predates Stonehenge by 4,000 years; the "Manhattan" of its day, Blick Mead could hold the secret to why one of the world's most famous monuments was built.
Episode 5Petra's Hidden Origins45 min
Albert Lin travels to Petra, Jordan, to discover the origins of the famous city. He finds out that it was built by the Nabataeans, a mysterious civilization that learned how to survive in the desert. He tracks down evidence of their cities and temples, and reveals that the ancient city of Petra was part of a much bigger network than he ever imagined.