Tang To Kang is one of Chinatown's old gold shops and a small architectural landmark on Yaowarat Road. The colonial-style building stands out among the district's dense shopfronts and is often noted as one of Bangkok's oldest gold-trading businesses.
It is a short stop rather than a museum. Look for it while walking Chinatown between Yaowarat Road, Wat Mangkon Kamalawat, and the old market lanes.