Because I live in a social dorm, it can sometimes be hard for me to get work done on my floor. Although my room is usually pretty quiet, sometimes I feel the need to remove myself from all of the things in my dorm with which I can distract myself. One of my favorite places to get work done is the 6th floor of the library. Designated as an "Absolute Quiet" floor, the most noise you ever hear is someone typing on a keyboard or unzipping a backpack. It's a great place to study and work for people who need utter silence to focus. I also like studying in the Commons in the morning. Although busy, the Commons is a very comfortable place to get work done. The hundreds of tables and chairs offer a place to study and eat at the same time or just sit for a few minutes and go over notes before class.
Although there are plenty of places to get work done and (likely) not get distracted (common lounges, hidden booths in the commons, vacant lecture halls, tables/booths in walkways inside almost every academic building), the best place is by far the library. The library offers places for whatever type of work you have to do as well as every type of personality. Different floors offer different noise levels (from general talking to absolute silence) as well as rooms for study groups and plenty of computers. They recently opened up a 24 hour area which have been freshly renovated and retrofitted. Giant white boards, personal tvs and a fantastic environment helped me cram for the first time, learning all that I needed for my Linear Algebra final in 5 hours the night before the exam.
The best place to work on campus would definitely be the library. The library is designed to allow students to get work done with as little distractions as possible. The library has many floors, the first floor being full of computers for you to do research if you desire. But what they do to help keep is quiet if necessary is they have specific floors that are designated as "quiet floors" and even floors that are designated as "absolute quiet floors". So there are actually many places on campus to get work done (basically wherever you want) but if you just want a nice quiet place to get work done then the library is your best bet.
We have a new 24 hour study space in the library called the RLC. It's amazing! It has a ton of whiteboards, tables and chairs, most of which are on wheels so you can move them around. There are also monitors that you can hook your laptop up to (if multiple people need to see the screen). Unlike the rest of the library, you can eat in the RLC. It's a great place for group or individual study.