दुनिया में सबसे गहरा गड्ढा | Enigmatic Facts About the Kola Superdeep Borehole
Published March 11, 2017
Views 14.6M | Likes 218K | Comments 13.0K
Ranked #585,944 globally by view count, this video has accumulated 14.6M views since it was published on Mar 11, 2017.
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