The University of Pittsburgh's Allegheny Observatory, circa 1912.
flipFlip to The University of Pittsburgh's Allegheny Observatory in 2007.
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Exterior of the Original Allegheny Observatory, 1900.

Credit: Allegheny Observatory, Archives Service Center, University of Pittsburgh

In 1859 a group of wealthy industrialists formed the Allegheny Telescope Association and built Pittsburgh's first observatory. Opened in 1912, the Allegheny Observatory sits just above where the Allegheny and Monongahela rivers meet to form the Ohio River, about four miles from downtown Pittsburgh.

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