M3 (NGC 5272) is perhaps the finest globular cluster of the northern hemisphere.

A hundred thousand stars make up the cluster, although -- being 40,000 light years away -- it only appears as a rather fuzzy star in binoculars.

The cluster is best found from Coma Berenices. Place beta Comae at the western edge of your glasses and M3 will be found at the opposite edge: binoculars.