Storms in California have toppled one of America's most famous trees - the Pioneer Cabin Tree. The giant sequoia was known for having a hole cut through its trunk - big enough for a car to drive through. The tree, estimated to be more than 1,000-years-old, was felled by the strongest storm to have hit the area in more than a decade. California and Nevada have been hit by unusually high rainfall levels, leading to flooding and falling trees. The Calaveras Big Trees Association first reported that the drive-through Pioneer Cabin Tree - carved 137 years ago - was no...