There is a Zoroastrian building on Leighton road near my office. There is a golden faravahar on the corner of the building, and the label over 101 Leigton road says “Zoroastrian Building” in polished gold letters. They have recently erected bamboo scafolding for some refurbishments, and so the faravahar is no longer visible, but you know it’s there.
I have met one professed Zoroastrian in my life, his name was Ali and he was from Iran and did not speak more than 10 words of English, but his Arabic was okay. I haven’t encountered any in Hong Kong as of yet, but if I find a use for this building other than office space, I will let you know.