Line 4. According to Baidu map, Shanghai Ruihong Sun Palace is located in Ruihong Road, Hongkou District, Shanghai. Take Metro Line 4 and get off at Linping Road subway station to get there directly. Shanghai Ruihong Sun Palace is located in the core of Shanghai's bustling Hongkou District. It is the "Golden Triangle" connecting the Bund, Lujiazui and the North Bund, with a commercial area of 550,000 square meters. It is a comprehensive commercial body integrating shopping, catering, entertainment, office and serviced apartments, and it is a comprehensive life and social destination.