It depends why you want to describe it, and what kind of place it is. Generally: what can you see? What sounds can you hear? What smells are there? What memories do you have of this place? What emotions do you associate with the place? Are there any famous people / sights / historical events associated with the place. Try to answer as many of these questions as you can. Hope this helps to give you some ideas.

How to describe a place(sightseeing)? Where is it? Why does it attracts many visitors? Who goes there? What is your personal experience there? What does your friends think about it?

Practice by describing a place you know well. Tell us about Xi'an or your house.