Actually, "Mill Ends Park" in Portland Oregon is recorded in the Guinness Book of World Records as the Worlds Smallest park.
http://www.portlandonline.com/parks/finder/index.cfm?PropertyID=265&acti...

It seems that Syracuse has got a period-loving sign maker.

Man on the left, quietly smoking his pipe as the apparition passes by.

I never knew this as Veteran Park. I've always known it as Hanover Square, which we always found odd because it's really a triangle. The park is now an abominable '70s brick and concrete plaza with ugly fountain. I'm shocked to learn that there have been absolutely undetectable changes to the Onondaga Savings Bank building on the right -- the nicely rounded portion between the towers was squared off quite expertly, and the entrance moved to the extreme left. The white postal and telegraph building, so grand that I'd always presumed it was once a bank as well, housed the restaurant where we had our pre-wedding dinner in 1983.

When they don't want you to walk on the grass, they mean it. That might qualify as the world's smallest "park."