GREAT BIG HOLE
This is known as The World's Biggest Hole (even though it's really not) and it's located in Russia. It's a diamond mine in Eastern Siberia near the town of Mirna and is 525 meters deep and 1.25 kilometers in diameter.
This truck is one of the biggest in the world. 13.36 meters in length, 7.78 meters in width, and 6.65 meters tall.
In this picture below, the truck appears as just a small dot.
The suction above this hole is so great, that several helicopters crashed as a result of it. Flight above the hole is prohibited now.