Built from 1926 to 1928, The PPL Building, formerly the Pennsylvania Power and Light Building, is a 24-story, 98 m (322 ft) skyscraper in Allentown, Pennsylvania. It is the tallest building in the city, and the second tallest in the Lehigh Valley after Bethlehem's Martin Tower.
The PPL Building serves as the headquarters for PPL Corporation, the main electric utility for the Lehigh Valley. It is often uniquely illuminated at night, especially during the Christmas season.
Here below is a found photo collection from
Thomas Grim that shows the construction process of the PPL Building from 1926 to 1928.
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| Construction area of the PPL Building, January 29, 1926 |
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| Construction area of the PPL Building, January 29, 1926 |
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| Construction area of the PPL Building, February 16, 1926 |
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| Construction area of the PPL Building, February 16, 1926 |
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| Before the excavating began, April 5, 1926 |
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| Demolishing the old building to clear the site, 1926 |
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| Construction area of the PPL Building, October 23, 1926 |
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| Doing the load test using bags of sand for the weight, October 23, 1926 |
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| Using a steam shovel to excavate, October 23, 1926 |
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| Excavating the site at 9th and Hamilton Streets, November 6, 1926 |
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| Construction area of the PPL Building, May 16, 1927 |
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| Morris Black Co. Delivering first load of lathe using a Mack Truck, July 21, 1927 |
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| Installing curbs and sidewalks, March 8, 1928 |
