Watch What on Earth Season 11 Episode 4 Online — Mystery of the Welsh Mine | Bobina

What on Earth — Season 11, episode 4 watch online

  • TV Series: What on Earth
  • Seasons: Season 11
  • Episode 4: «Mystery of the Welsh Mine»
  • Air date: July 13, 2022
  • Running time: 60 min

What on Earth, season 11 episode 4 «Mystery of the Welsh Mine»: air date July 13, 2022. Episode overview, season trailer and the cast of What on Earth.

Satellite images capture monumental ruins surrounded by bizarre feather-shaped structures on a northern Welsh mountaintop. Experts investigate a hidden tunnel containing the remains of an abandoned slate mine from the 18th-19th Centuries with an exploitative and deadly past of hazardous working conditions and low pay for miners, which included children.

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Episodes — Season 11

  1. 1 Episode 1 «Secret Soviet Spacecraft» June 22, 2022
  2. 2 Episode 2 «Range of Nazi Evil» June 29, 2022
  3. 3 Episode 3 «Doomsday Lair of Greece» July 6, 2022
  4. 4 Episode 4 «Mystery of the Welsh Mine» July 13, 2022
  5. 5 Episode 5 «Riddle of Sardinia Tower» July 20, 2022
  6. 6 Episode 6 «Circles of the High Kings» July 27, 2022
  7. 7 Episode 7 «Russia's Lightning Lab» August 3, 2022
  8. 8 Episode 8 «Poland's Secret Nazi Compound» August 10, 2022
  9. 9 Episode 9 «Holes of Dead Sea Destruction» August 17, 2022
  10. 10 Episode 10 «Ancient Rome's El Dorado» August 24, 2022