TV show availability guide
Building the Impossible
Presenter Rob Bell takes us on a voyage around Britain and Ireland to reveal the hidden secrets that make offshore lighthouses such extraordinary feats of engineering.
2020 7.0/10 community score 3 seasons · 12 episodes Returning Series
- Documentary
Viewing market
Country-level availability
Where to watch in United States
4 platforms currently listed across all viewing options
Data checked 26 Oct 2026, 16:48 UTC
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Series schedule
Seasons and episode dates
A concise series timeline, including the latest aired episode and the next date currently listed.
- First aired
- Seasons
- 3
- Episodes
- 12
- Status
- Returning Series
Latest aired episode
S3 E6
Boston Light Lighthouse
Aired 45 min
Rob travels to New England, sailing in the slipstream of the pilgrims and landing in Boston Harbor to discover the allegedly cursed beacon, Boston Light. America's first lighthouse is a story of civil war and personal tragedy, incredible innovation, and pioneering technology and Rob discovers the hidden stories of a nation's light-keeping unsung heroes.
Next listed episode
No upcoming episode date is currently listed.
Season guide
Most recent seasons first
Season 3
6 episodes
First episode aired
Season 2
3 episodes
First episode aired
Season 1
3 episodes
First episode aired
About these dates: Air dates describe the series schedule and may change. They do not confirm that an episode is available on the same date from the providers listed above.
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