Following up on post below about the statue of Mohammed that used to be on the front of the Manhattan Appellate Courthouse, it seems there's also a likeness of Mohammed in the decorations on the front of the United States Supreme Court. In addition, there's also a statue of Mohammed inside the building.

In the mid-1990s, the Muslim advocacy group CAIR petitioned the late Supreme Court Justice William Rehnquist to remove the statue and the likeness of Mohammed in the frieze on the front of the building and also asked him to change the language in Supreme Court literature that referred to Mohammed as the "founder" of Islam rather than the "prophet" of Islam.

Rehnquist turned down the request to get rid of the statue and frieze carving, but agreed to reword the references in Court literature.

The only reference to this I've been able to find is in footnote 18 of this law review article. It's on page 7 and 8 of the pdf. It includes a few more details.