TV show availability guide
Secrets Unlocked
Join host Adam Mastrelli as he brings us face-to-face with the puzzling treasures of remarkable relics that are full of secrets, written in stone, gold, and blood. Explore hidden corners of the world, decipher ancient documents, and apply groundbreaking research and forensic techniques in our quest to discover the truth about these fabled cities, monuments, and remnants.
2020 8.0/10 community score 1 season · 30 episodes Returning Series
- Documentary
Viewing market
Country-level availability
Where to watch in United States
10 platforms currently listed across all viewing options
Data checked 17 Oct 2026, 16:38 UTC
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Free
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Buy
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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
- 1
- Episodes
- 30
- Status
- Returning Series
Latest aired episode
S1 E30
Tower of Babel
Aired
The Tower of Babel is one of the most dramatic stories in the Bible, an apocalyptic tale of the construction of a mighty stairway to heaven that was destroyed by the wrath of God. Now, an incredible discovery suggests that this immense structure wasn't simply a work of fiction, but existed in the legendary city of Babylon. Host Adam Mastrelli examines the mysteries of this lost wonder of the ancient world, the legendary King Nebuchadnezzar II who built it, and his prisoners of war, who may have inspired the biblical tale.
Next listed episode
No upcoming episode date is currently listed.
Season guide
Most recent seasons first
Season 1
30 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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