Someone posted this link on another site. I think it's pretty neat!
It's a series of photos that will take you from 10 million light years away from the Milky Way all the way down to the electrons and protons of an oak leaf (so there is the plant part of the post!)
Click on auto and it will go through the pictures for you, or click on decrease to move manually through the pictures.
This is one of those things that really makes you think about how we are all made up of the same stuff. Us, the rocks, bacteria, plants, stars, etc. Science is so cool!