In your web-browser you will be able to see, a navigation bar running across your screen horizontally. Within this navigation bar, you can see the number of levels you have gone through and locate your position in the site. Plone necessarily runs on a tree structure where you access the largest folder first and then go into the specific sub-folders as required.
On the left hand side of your screen is a vertical box that also shows you the available spaces you can go to and your current position within the site. You can always use this space to navigate directly to your desired destination.