New York Times, flea markets are hip. Nonetheless, you should still check out the Attic Treasures Flea Market in Peekskill every Sunday from 8:00 am to 4:00 pm. Goods range from rare antiques to cool crafts to cheap sneaks. The Peekskill BID even has a nice little video of the flea. And, starting June 10, the Peekskill Farmer's Market will be back on Saturdays.