Gilahina Trestle, Wrangell-St. Elias National Park and Preserve, Alaska, USA.

Built in 1911 as part of the Copper River and Northwestern Railway, Gilahina Trestle rises 90 feet high along the McCarthy Road in Wrangell-St. Elias National Park and Preserve, Alaska, USA. Wrangell-St. Elias National Park and Preserve (the largest National Park in the USA) is honored by UNESCO as part of an International Biosphere Reserve and UNESCO World Heritage Site.