300-Million-Year Old Wheel Discovered in a Donetsk, Ukraine Coal Mine
In 2008, a curious find was discovered down a coal mine in the Ukrainian city of Donetsk at a depth of 900 meters (2952.76 feet) from the surface.
As it could not be safely or successfully cut out due to the nature of the sandstone in which it was embedded, the mysterious artifact looking much like an ancient wheel remains in situ down the mine.
When geologically dated, the scholars refused to accept the results.
Watch the video to get the incredible details!