This massive giant hole is located in Russia. The giant hole is actually a diamond mine in Eastern Siberia near the town Mirna. It is 525 meters deep and 1.25 km in the diameter.
The following truck loader is one of the biggest in the world - lenth 13.36 meters, width 7.78 meters and height 6.65 meters.
But when placed inside the hole, it is just a small point.
The suction above the hole resulted in several helicopter crashes, so all flight above the hole is prohibited now.
And a digital view from the satellite: