Description:While we are aware of most dangers on the road, some are a little too unexpected.
Juan Unger was driving on Highway 174 in Ottawa, Canada, when he noticed a black patch ahead that he thought was a tarp. It turned out to be a large hole that was reported to be as big as an Olympic-sized pool. It was too late to slow down and his four-door car plummeted into the sinkhole.(1:00)