Hollywood shopping center parking lot! I find paper money maybe six or seven times a year, mostly $1 bills as might be expected. Highest denomination ever found was a $100 in Sun Valley, California. I was certain it was a phony but . . . the bank accepted it. I figure it was from a drug deal where the buyers had to hightail it out of there pronto.

I also have found a couple of fake $100 bills over the years. And sometimes, foreign paper money, too - UK, France, Mexico, etc. which banknotes I assume are real.