Can I go to my bank and buy gold?

Excuse me, but I have a question regarding the acquisition of gold. Is it possible to simply walk into my local bank and purchase gold bars or coins directly from them? I've heard that gold is a popular investment choice, and I'm interested in adding it to my portfolio. However, I'm unsure of the process and if my bank offers this service. Could you clarify if this is a viable option, or if there are other more conventional methods for acquiring gold? Thank you for your time and assistance.