Wow I'd never seen that Garbo mural before. I guess this also an admission that I don't get to the library much :)
For shame Roland! Get down to the Main with lil' Roland right away, the kids section is awesome and a great place to while away several hours. :)
I think that mural is just on some parking garage or business nearby the library, I don't think it's affiliated? Who knows.
Greta Garbo and John Gilbert had a great love affair in real life. He was a prominent silent film actor before she became famous, and then when talkies came in, his voice didn't impress anyone, and she went on to become more successful.
I think she ended up living in isolation close to Union Square, close to where Andy Warhol's factory was.
Sorry, I also named my daughter Greta so I'm obviously a fan ;)