
On Wednesday, while running down addresses for Explorer Publishing’s Complete Residents Guide to Shanghai (due out in September), I visited the only remnant of Shanghai’s old city wall. It’s part of the western gate, built in 1553, a tower where archers could take aim at the sort of Japanese invaders who didn’t come armed with credit cards.
The rest of the wall was demolished in 1912, according to a Shanghai government website, because it had become “an obstacle in the city’s economic development and communication.”

Outside the wall, in the small park that adjoins the splendidly developed and exceedingly communicative Renmin Road, an old man hung his cap and cane on a fencepost, then commenced his silent practice of tai chi.