
Preview | The Sunken Basilica
Preview: Season 20 Episode 5 | 32sVideo has Closed Captions
Explore the sunken remains of an early Christian basilica in western Turkey.
Uncover the sunken remains of a 4th-century basilica in Turkey. Submerged beneath the waters of Lake Iznik for hundreds of years, the church could reveal crucial insights into the early days of Christianity. Join a team of international researchers as they travel back through time—and grapple with Turkey’s many earthquakes, which could sink the structure deeper at any moment.
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SECRETS OF THE DEAD is made possible, in part, by public television viewers.

Preview | The Sunken Basilica
Preview: Season 20 Episode 5 | 32sVideo has Closed Captions
Uncover the sunken remains of a 4th-century basilica in Turkey. Submerged beneath the waters of Lake Iznik for hundreds of years, the church could reveal crucial insights into the early days of Christianity. Join a team of international researchers as they travel back through time—and grapple with Turkey’s many earthquakes, which could sink the structure deeper at any moment.
Problems with Closed Captions? Closed Captioning Feedback
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Learn Moreabout PBS online sponsorshipOn Secrets of the Dead, an early Christian basilica underwater for nearly a thousand years.
- How is it that, till now, no one has noticed the presence of such a large monument?
Scientists are racing to unravel the churchs mysteries.
- We want to know when it was built, when it was destroyed, and how it was destroyed.
- We work like detectives -- archaeological detectives.
The Sunken Basilica... on Secrets of the Dead.
[propulsive music]
3D Modeling Brings a 4th-Century Basilica Back to Life
Video has Closed Captions
After excavating its remains, scientists see what the Iznik basilica may have looked like. (1m 39s)
An Underwater Dive to see the Sunken Basilica Up Close
Video has Closed Captions
Scientists explore the underwater ruins of a 4th-century basilica. (1m 28s)
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SECRETS OF THE DEAD is made possible, in part, by public television viewers.