Thanks to the guys at Queerty for bringing this to our attention. It seems that there is a very homoerotic mural at the Library of Congress dating back to the opening of the building in 1897. If they'd done it this way in high school, I'd have shown up at gym class more often.
A mural, painted in the late 19th century by Frederick C. Martin, that hangs in the Great Hall of the Library of Congress, and shows a nine naked men playing baseball. According to Library staffer Susan Reyburn, the mural has been there since the building opened in 1897, and is "one of about five images depicting ancient games, showing the Olympic ideal." Except, as Asylum notes, "they didn't play baseball in ancient Greece. Nor did they play American football, another anachronistic ceiling mural found in the Great Hall."
AARP Pride Information and Resources for Gay, Lesbian, Bisexual and Transgender People, Families and Allies - AARP