Shanghai Songhu Memorial Park commemorates those who fought and died in the Battle of Shanghai, one of the bloodiest battles of the Second Sino-Japanese War. The site includes a memorial museum and a modern pagoda, with exhibitions focused on the 1937 fighting around the city.
It is well north of central Shanghai in Baoshan, so it is a deliberate trip rather than a casual add-on. For travellers interested in modern Chinese history, it adds context to the war memorials and occupation-era sites closer to the centre.