Up Tai Hang Road behind Causeway Bay is Aw Boon Haw (Tiger Balm) Gardens (open daily 9:30am 4pm), founded in 1935 by the late Aw Boon Haw, who became a millionaire by producing the medicinal Tiger Balm.
Aw Boon Haw produced the medicinal Tiger Balm, becoming rich as a result.