Canyon Collection (#15)

Iranian Gorge
A mountain gorge in Iran, where part of a railway connecting the Persian Gulf and the Caspian Sea is under construction, circa 1955. (Photo by Three Lions/Hulton Archive/Getty Images)

Railway Route
A mountain gorge in Iran, where part of a railway connecting the Persian Gulf and the Caspian Sea is under construction, circa 1955. (Photo by Three Lions/Hulton Archive/Getty Images)

Grand Canyon
The Grand Canyon in Arizona, one of the seven natural wonders of the world, 1925. (Photo by Topical Press Agency/Hulton Archive/Getty Images)

Grand Canyon
The Grand Canyon in Arizona, one of the seven natural wonders of the world, June 1925. (Photo by Topical Press Agency/Hulton Archive/Getty Images)

Grand Canyon
The Grand Canyon in Arizona, one of the seven natural wonders of the world, June 1925. (Photo by Topical Press Agency/Hulton Archive/Getty Images)

Grand Canyon
The Grand Canyon in Arizona, one of the seven natural wonders of the world, circa 1950. (Photo by Three Lions/Hulton Archive/Getty Images)

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