Can you go back to college after graduating?

I've been pondering my upcoming schooling for my Bachelors and I wondered if it were possible to go back to school for the same field AFTER graduating. It may be a stupid question, but I am not well versed in terms of higher education protocol and practices, so I figured I would ask. I found the University of my dreams, but one cant help but wonder if its greener somewhere else. I want to get the most out of my degree program, but what if I dont feel that Ive succeeded after graduation and need to try out a new school? Is it possible to do that without transferring right in the middle of things, and having to adjust somewhere else? Just inquiring.