If im falling down to the earth, and the earth is falling down the sun, what is the sun falling down on?

Question

and what does that fall down on?

its mind-boggling.

Answer 1

The sun is "falling down" on the center of the Milkyway, and that, in turn, is "falling down" the common center of gravity of the "local group" of galaxies - about 50 in all - over a space of about 40 million light years.  

Answer 2

  The sun is falling towards the galactic center.

Answer 3

the sun goes towards the center of our galaxy and our galaxy is actually "flying away" from the point of the intial big bang