US Post Office and Courthouse - Credit: Wikimedia Commons
The U.S. Post Office and Courthouse in Eau Claire, Wisconsin, was built in 1907. It was listed on the National Register of Historic Places in 1991. It is designed in Classical Revival architecture style. Also known as Federal Building and U.S. Courthouse, it served historically as a courthouse and as a post office. Read more on Wikipedia
Source: en.wikipedia.org