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What on Earth?
Season 11 • Episode 4 • Mystery of the Welsh Mine
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What on Earth? Season 11, Episode 4: Mystery of the Welsh Mine
Satellites capture ruins amid bizarre structures on a Welsh mountaintop. Watch What on Earth? Season 11, Episode 4 Mystery of the Welsh Mine in HD free online. Enjoy high-quality streaming of What on Earth? Season 11, Episode 4 and share your thoughts in the comments below!
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Episodes
10 episodes
Secret Soviet Spacecraft
Satellites capture a bizarre industrial complex in desert of Kazakhstan.
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Range of Nazi Evil
Satellites capture dozens of parallel lines hidden in Polish woodlands.
42 min
Doomsday Lair of Greece
Satellites capture bizarre structures on the Greek island of Kefalonia.
42 min
Mystery of the Welsh Mine
Satellites capture ruins amid bizarre structures on a Welsh mountaintop.
42 min
Riddle of Sardinia Tower
Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate the relics of a declining ancient civilization that may have suffered a celestial catastrophe.
42 min
Circles of the High Kings
Satellite images capture two conjoined circular structures embedded in the lush and rolling landscape of Ireland; experts investigate and uncover an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.
42 min
Russia's Lightning Lab
Drone images capture oddly shaped towers in a forest clearing near Moscow.
42 min
Poland's Secret Nazi Compound
Satellites capture a series of zigzagging patterns in Polish woodlands.
42 min
Holes of Dead Sea Destruction
Drone images capture enormous holes scattered along the Dead Sea coastline.
42 min
Ancient Rome's El Dorado
Satellites capture bizarre markings etched deep in the mountains of Spain.
42 min