On the two recent occasions I was in Shanghai, I was thrilled by the abundance of candid street photography opportunities that presented themselves in its old neighborhoods. The narrow lanes crisscrossing these neighborhoods are called lòngtáng (弄堂) or alternatively, lilong (里弄), where whole communities live and sometimes work. The Shanghai lòngtáng can either refer to the lanes that its houses face onto, or to a group of houses connected by them. 
I was eagerly planning to revisit some of the neighborhoods with lòngtáng on my forthcoming trip to Shanghai and add to my inventory of candid photography, but was disappointed to read that large areas of Laoximen; one of the most well known of these neighborhoods, are being demolished by the city's government in the name of modernizing the area and raising living standards.
rove, stray, roam, vagabond, wander, swan, ramble, range, drift, tramp, cast, roll - move about aimlessly or without any destination, often in search of food or employment; "The gypsies roamed the woods"; "roving vagabonds"; "the wandering Jew"; "The cattle roam across the prairie"; "the laborers drift from one town to the next"; "They rolled from town to town"
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