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11 Amazing Historical Snapshots From One of the World's Best Archives

William Henry Jackson, Dale Creek Bridge, Union Pacific Railway, 1885, Albumen silver print. » Makes me think of Hell On Wheels. Do you watch that show? I love it.

The Lethbridge Viaduct, commonly known as the High Level Bridge, is the longest and highest steel trestle bridge in North America. It was constructed between 1907–1909 at Lethbridge, Alberta, Canada