Hang out in the old haunt of Fujian fruit merchants at the Sanshan Guildhall – one of many guildhalls to pop-up in the city for traders to seek camaraderie. Though it’s been shifted 30 metres south from its original position, this relatively late addition (built in 1909) is also the only well-preserved guildhall from the Qing dynasty and currently serves as a museum. 1551 Zhongshan Nan Lu, Bansongyuan Lu.
http://www.timeoutshanghai.com/features/Things_to_Do-Around_Town/44571/9-places-to-see-Shanghai-through-the-ages.html