It was declared a city landmark in 1965, and today it's still possible to view the remnants of the old chocolate-making machinery there (though chocolate production stopped years ago). Be sure to pop into the chocolate shop; they often hand out free samples at the front door, though the sample may not make up for the long wait in line. The square has a few boutiques, restaurants, specialty stores, and galleries catering mostly to tourists. Be sure to visit the San Francisco Brewing Company for some great west coast IPAs and other freshly brewed beers, but be prepared to pay tourist prices for them. It also has great views over the Bay.