The Salt Lake City Public Library system's main branch building is an architecturally unique structure in Salt Lake City, Utah. It is located at 210 East, 400 South, across from the Salt Lake City and County Building and Washington Square.

The Salt Lake City Public Library was originally housed in the Salt Lake City and County Building in 1898. Thanks to a donation of land and money by a John Quackenbos Packard in 1900, a new library was built in downtown Salt Lake City; the building is now listed on the National Register of Historic Places. This library remained in use until it outgrew the building in the early 1960s. The city library was then moved to a new home across from the City and County Building at the intersection of 500 South and 200 East. The groundbreaking ceremony was held on December 28, 1962, and the building was dedicated on October 30, 1964. In 1965, the old library was renovated into the Hansen Planetarium, funded by a donation of $400,000 from Beatrice M. Hansen.

More information on the Wikipedia page [1]

The website is [2]