Where is the end of the Galaxy?

It is infinite, like where is the end of a fractle? It is where you choose to end it.

That would be a quite a sight: the end of matter.

Right after the edge. :o)

I thought the warp zones were the end?

I'd rather not point at it...

second star from the right and straight on till morning!

I beg to differ with all ten of the previous answers, although picknancy1234 comes closest, but the "edge", isn't well-defined, it is sort of fractal as artistaeli says, but certainly not infinite. You can draw a circle around The Mandelbrot Set, probably this first fractal discovered, that includes ALL the points of the set {it is called a Jordan curve, or in the case of The Milky Way a Jordan surface like an ellipsoid}. After the galaxy we are in there is NOT an end to matter at all, this is one of BILLIONS of galaxies each having billions of stars. I guess all of you missed the series of Q's I and others posted speculating whether there are more grains of sand on the Earth or stars in the universe.
Many of what look like stars in the sky ARE galaxies unbelievably distant from ours but only seen in detail with Hubble and other "super" telescopes.
Short answer: the smallest Jordan curve containing all the Milky Way stars, many of which have numbers assigned they are so well studied, is the end.
FYI, the Andromeda galaxy is on a collision course with The Milky Way.

Inside my bubble gum

The space between the galaxies is expanding at close to the speed of light. Because it is the empty space expanding (and not the galaxies themselves moving) all points in the universe once shared the same beginning. A place described as having "ultimate" energy and "ultimate" density. I think this shared feature of the early universe is far more interesting that whatever boundaries the cosmos might have because it tells us that EACH point within the cosmos lays rightful claim as the point of prima causa. It offers the verity that the point of creation IS WITHIN YOU!

At the beginning of the imagination.

I always thought about that when I was little and it continues to freak me out..
What if there's something beyond it, you know?
Where is the universe in the grand scheme of things, or is that all...
Ahhh..
creepy.