Dr. Albert Lin at the ruins of the ancient city of Nan Madol, Micronesia. (National Geographic/Blakeway Productions)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019GhostCityOfThePacific_103_LostCitiesWithAlbertLin_05.jpg
Dr. Albert Lin at the ruins of the ancient city of Nan Madol, Micronesia. (National Geographic/Blakeway Productions)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019GhostCityOfThePacific_103_LostCitiesWithAlbertLin_03.jpg
Dr. Albert Lin climbs the volcanic mountain of Pwisen Malek on Pohnpei Island, Micronesia. (National Geographic/Blakeway Productions)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019GhostCityOfThePacific_103_LostCitiesWithAlbertLin_01.jpg
Albert Lin using LiDAR technology. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_17.jpg
Albert Lin using LiDAR technology. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_15.jpg
Albert Lin using LiDAR technology. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_14.jpg
Albert Lin using LiDAR technology. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_13.jpg
Albert Lin using LiDAR technology. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_12.jpg
Acre, Israel - Albert Lin analyzing data in lab. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_09.jpg
Acre, Israel - Albert Lin with iPad overlooking lagoon. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_08.jpg
Acre, Israel - Ehud Galili and Albert Lin heading into the lagoon for a dive. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_07.jpg
Jerusalem, Israel - Gold coin collection. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_04.jpg
Acre, Israel - Albert Lin (L) with Edna J Stern in the Templar Tunnels. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_03.jpg
Acre, Israel - Albert Lin overlooking the city of Acre. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_02.jpg
Acre, Israel - Albert Lin (R) with Eliezer Stern in an underground crypt. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_LR_01.jpg
Acre, Israel - Dr. Albert Lin on his way to Belvoir Fortress. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_11.jpg
Acre, Israel - Director Mike Slee and DOP Pete Allibone film Dr. Albert Lin entering an underground crusader-era construction. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_09.jpg
Acre, Israel - Dr. Albert Lin enters an underground crusader-era tunnel. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_13.jpg
Acre, Israel - Dr. Albert Lin on an Old City rooftop, Acre, Israel. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_12.jpg
Acre, Israel - Dr. Albert Lin on his way to Belvoir Fortress. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_11.jpeg
Acre, Israel - Dr. Albert Lin (L) talks to Dr. Eliezer Stern at Saint Andrew's Church, Acre. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_07.jpg
Acre, Israel - Dr. Albert Lin uses his iPad to visualize scanning data at the lagoon in Acre, Israel. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_06.jpg
Acre, Israel - Dr. Albert Lin (R) observes as Dr. Robert Kool of the Israel Antiquities Authority examines a crusader-era coin. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_05.jpg
Acre, Israel - Dr. Albert Lin uses his iPad to visualise scanning data at the lagoon in Acre, Israel. (Blaeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_04.jpg
Acre, Israel - Dr. Albert Lin overlooking the lagoon in Acre, Israel. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_03.jpg
CGI recreation of the ancient fortress of Acre, Israel, viewed from the sea. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_101_LostCitiesWithAlbertLin_CGI_LR_6.jpg
CGI recreation of the ancient fortress of Acre, Israel, viewed from above. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_101_LostCitiesWithAlbertLin_CGI_LR_3.jpg
CGI recreation of the ancient fortress of Acre, Israel at sunset. (National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_101_LostCitiesWithAlbertLin_CGI_LR_1.jpg
Acre, Israel - Dr. Albert Lin in his temporary field lab. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_10.jpg
Acre, Israel - Crew member (R) films Dr. Albert Lin on an Old City rooftop in Acre, Israel. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_08.jpg
Acre, Israel - Dr. Albert Lin on a speed boat outside the harbour of Acre, Israel. (Blakeway Productions/National Geographic)Episode: #1 "Fortress of the Knights Templar"Air Date 10/20/2019FortressOfTheKnightsTemplar_Ep101_LostCitiesWithAlbertLin_01.jpg
