2 Tymor
20 Pennod
Mysteries from Above - Season 2 Episode 8
Visits to some of the most cavernous places on Earth, including Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert and a voluminous void in Antarctica.
- Blwyddyn: 2023
- Gwlad: Canada
- Genre: Documentary
- Stiwdio: Sky History, Cottage Life
- Allweddair:
- Cyfarwyddwr:
- Cast: Natasha Billson, Torri Yates-Orr, Karen Bellinger
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