Much of the stock in the Baihuo Dalou, on the northeast side of the main roundabout, looks like it hasn't moved since the Cultural Revolution. This is a chance to pick up Seagull cameras, mahjong tiles, and chess sets at 1960s prices. For a supermarket try the Xinhua Chaoshi, near the Xibei Jiudian on Xinhua Nan Lu.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.