Mason City Public Library

208 E. State St., Mason City, Iowa. County/parish: Cerro Gordo.

Added to the National Register of Historic Places May 25, 1989. NRIS 89000405.

1 contributing building.

Also known as:

Penn Avenue Building

From Wikipedia:

The Mason City Public Library is located in Mason City, Iowa, United States. The building that was funded by Andrew Carnegie, and is now an office building, was listed on the National Register of Historic Places in 1989. It was included as a contributing property in the Mason City Downtown Historic District in 2005.

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National Park Service documentation: https://catalog.archives.gov/id/75338463