Some
Random facts:
The Large and Small Magellanic Clouds are not globular clusters; they are irregular galaxies, and in fact they have globular clusters of their own. Similarly, the Andromeda Galaxy is not our nearest galactic neighbor. That distinction goes to the Sagittarius Dwarf Galaxy, SagDEG, which is currently being devoured by our own galaxy, in a process known as Galactic Cannibalism.
Globular clusters are important to the study of cosmology because they are the oldest objects that we know how to measure the age of. As such, they place a lower bound on the age of the universe.