Many people think Polaris is the brightest star, but it's only 48th in brightness. Still, Polaris is famous because the entire northern sky wheels around it.
Our closest stellar neighbors are the 3 stars that are the Alpha Centauri system. They lie just over 4 light-years away (25 trillion miles or 38 trillion km).
The 6th-brightest star in the night sky, Capella, in the Northern Hemisphere constellation Auriga the Charioteer, is also a point of the Winter Hexagon.
Alpheratz, the brightest star in the constellation Andromeda, can guide you to the Andromeda Galaxy, the closest large spiral galaxy to our Milky Way galaxy.