Our Solar System is located in the far reaches of a spiral galaxy that we call the Milky Way Galaxy. Almost all of the stars that we see in the night sky are also members of the Milky Way Galaxy. The Milky Way Galaxy contains roughly 200 billion stars, one of which is our Sun.
We don't know exactly what the Milky Way Galaxy looks like because we're in it. It's like trying to describe a forest when you're in it.