The Yongcheng Cultural and Creative Flea Market is one of those "can't-miss" places, as it is the largest and most popular antique and flea market in Tainan, spread over a large area and has many stalls with a variety of merchandise. You can find just about anything here, including painted ceramic vases, jade jewelry, carved stone figurines, and intricately designed wooden furniture. At some stalls, you'll even be able to find antique opium scales, posters, and old-school brochures.