How do you Imagine your Fantasy Setting?

World building and setting are one of the core parts of the immersion and sometimes general premise that can make or break a story; even more so with fantasy. How do you imagine yours and what are some world building-esque things in your story you have added? (For example, something related to world building could even be a product a shopkeeper would sell. Setting… well you would just describe the setting of the world; its time and place.)