Upper Lascar Row, also known as Cat Street, is a narrow alleyway market that sells decorations, trinkets, and antiques. It’s not quite like other Hong Kong markets because it’s less commercialized (i.e. doesn’t sell as many touristy things), even though the most common buyers there seem to be foreign.
The name comes from a joke in Chinese: it’s said that if you have something stolen, you’re likely to find it for sale on Cat Street. Thieves are known as “rats” in Cantonese slang, and people who purchase goods from rats are called “cats”.