Uploaded February 2026 | Updated September 2026, 3 weeks ago
The Time Team travels to Blaenavon, Wales, to solve a massive historical mystery: what happened to the world’s first railway viaduct? Built at the dawn of the Industrial Revolution, this 10-arch giant disappeared from records by 1815. Using heavy artillery machinery and advanced radar, the team attempts the deepest excavation in the show's history to find a structure buried under 10,000 tons of debris. Discover the harsh reality of 18th-century ironworks and see the moment a remote camera captures the first glimpse of the viaduct in two centuries.
You can now become a History Hit member right here on YouTube! Join for access to a new exclusive documentary every week, and access to over 160+ of our documentaries presented by world renowned historians like Dan Snow, Eleanor Janega, Tristan Hughes, Mary Beard, Matt Lewis and more.
Get an exclusive release every week by signing up here: bit.ly/4pyExyn
This channel is part of the History Hit Network. Any queries, please contact owned-enquiries@littledotstudios.com
The Time Team travels to Blaenavon, Wales, to solve a massive historical mystery: what happened to the world’s first railway viaduct? Built at the dawn of the Industrial Revolution, this 10-arch giant disappeared from records by 1815. Using heavy artillery machinery and advanced radar, the team attempts the deepest excavation in the show's history to find a structure buried under 10,000 tons of debris. Discover the harsh reality of 18th-century ironworks and see the moment a remote camera captures the first glimpse of the viaduct in two centuries.
You can now become a History Hit member right here on YouTube! Join for access to a new exclusive documentary every week, and access to over 160+ of our documentaries presented by world renowned historians like Dan Snow, Eleanor Janega, Tristan Hughes, Mary Beard, Matt Lewis and more.
Get an exclusive release every week by signing up here: bit.ly/4pyExyn
This channel is part of the History Hit Network. Any queries, please contact owned-enquiries@littledotstudios.com
