The adjacent block of 5th Street was permanently closed to vehicular traffic in early 2002 to make way for a new light rail station serving Minneapolis City Hall and the Hennepin County Government Center, just to the south.
The building was added to the National Register of Historic Places in 1974.
Ford Brothers Glass Company designed and manufactured the rotunda's stained glass windows and skylight.
A 'green' roof will be installed in 2008; green roofs feature plants which absorb rainwater, mitigate the effects of urban heat islands, and help insulate the building.
The building is an excellent example of the romanesque style applied to municipal buildings in the United States. The City Hall and County Courthouse just a few miles to the east in St. Paul is an excellent example of the art moderne style, typically employed just a couple of decades later.
Do you need more information about this building and its related companies?