Satellites capture ruins amid bizarre structures on a Welsh mountaintop.

Mystery of the Welsh Mine

Steven Kearney

Andrew Gough

Riddle of Sardinia Tower

Doomsday Lair of Greece

Satellites capture a bizarre industrial complex in desert of Kazakhstan.

Secret Soviet Spacecraft

Satellites capture dozens of parallel lines hidden in Polish woodlands.

Range of Nazi Evil

Satellites capture bizarre structures on the Greek island of Kefalonia.

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.

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.

Circles of the High Kings

Drone images capture oddly shaped towers in a forest clearing near Moscow.

Russia's Lightning Lab

Satellites capture a series of zigzagging patterns in Polish woodlands.

Poland's Secret Nazi Compound

Drone images capture enormous holes scattered along the Dead Sea coastline.

Holes of Dead Sea Destruction

Satellites capture bizarre markings etched deep in the mountains of Spain.

Ancient Rome's El Dorado

Satellites orbit Earth at 17,000 miles an hour, capturing images of our world that are breathtaking, but some are bizarre. This unique perspective reveals objects that seem to make no sense &amp; phenomena that defy explanation. Such images force the question, what on Earth is that?

Mystery of the Welsh Mine

Seasons12

Season 11 Episodes10

Cast2

Discussion

Episode Summary