Tracks Across The Sky - Pennsylvania's Kinzua Viaduct

An engineering masterpiece, Pennsylvania's Kinzua Viaduct (also called the Kinzua Bridge) stood 300 feet high as a symbol of ingenuity and determination. The railroad bridge was built in 94 days in 1882 and was updated and preserved for over 100 years before its tragic destruction by a tornado in 2003.
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