I was at the Texas Memorial Museum (also known as the Texas Natural Science Center) and there was a display case.

Inside the display case, as if someone just slipped it in (easter egg? inside joke?), was a little card that had this upon it:

D GFOY EWZN YVN YVN
OLNANQP WA YVN
YVDQS TEWWQ.

I’m pretty sure that’s an encoded message, but I have no idea what it is and I’m not a cryptographer.

Anyone know?