What on Earth?
6.4Returning SeriesDocumentary

What on Earth?

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 & phenomena that defy explanation. Such images force the question, what on Earth is that?

16. Siberian Hell Pit

Siberian Hell Pit
0.0Mar 7, 2017 · 44 min

A massive chasm in a Siberian forest may be a gate to the underworld.