Giant Sequoia ‘Tunnel Tree’ in California Is Toppled by Storm The Pioneer Cabin tree was hollowed out in the 1880s, and cars once drove through its ancient trunk. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Life on Mars CONFIRMED? NASA Curiosity rover finds ‘habitable atmosphere’Out There: When Sky & Telescope Had No LimitNASA Cancels First All-Female Spacewalk Over Spacesuit SizesTwo Top Medical Groups Call for Soda Taxes and Advertising Curbs on Sugary DrinksDuke University to Pay $112.5 Million to Settle Claims of Research MisconductDuke University to Pay $112.5 Million to Settle Claims of Research Misconduct