It is very big.
Even by conventional standards, this pothole on a road in Almaty, Kazakhstan, is quite the doozy. In the video below, cars look like they are literally dipping down into the road.
There is a whole YouTube sub-genre dedicated to potholes - see a two part film of pothole repairs in Canada. A disaster of a road in Missuola. This video offers a drivers' perspective of one street in East Liverpool, England. And, if you're really into pothole porn, the Huffington Post pulled together a collection of the worst in the world, including one that ate half a truck.