Hi Leslie,
Please check out the GSA Fine Arts Collection website. There are some examples of public art in federal courthouses.

Here is a link to the gallery:  https://www.gsa.gov/fine-arts#/gallery/423

Malina Moore
Regional Fine Arts Program Manager
U.S. General Services Administration | Public Buildings Service
Northeast and Caribbean Region
One World Trade Center, Room 55W09
New York, NY 10007
Cell: (347) 226-1567