Here's an odd one: The Florida Renaissance Festival at Quiet Waters Park in Deerfield Beach, Florida has open chess play. They've got three giant boards (roughly 1 foot squares, I'd guesstimate), and people just walk up and play. There used to be a strong player who played there for money, but I think the faire got rid of him because they considered it gambling. The faire runs for 5 weekends every February-March. Next weekend is the final one for this year.
As a ren performer who doesn't have an act right now and has never worked that particular faire, I've actually been thinking of asking if I can take over as the resident chess expert next year. I'm thinking that if I give people prizes for beating me instead of money, then they might see it as just another faire game, not gambling.
--Fromper