Aerial footage of the second largest man-made hole in the world, the Mir Mine in Russia. <br /><br />The video, filmed in Mirny, eastern Siberia in March this year, shows the former diamond mine, which is more than 500 metres deep. <br /><br />According to the filmer, you can't fly directly over the mine because there have been reports of helicopters getting sucked into the hole by the airflow.
