I have just begun working on Master Thesis. The way the thesis works in the Architecture Faculty is that you are given a semester (or more) to complete a project with a topic of your choosing. You pick an adviser and sometimes an examiner. The key point of the thesis is to pick a topic you are interested in and to go deep into its exploration.
In addition, where you produce the thesis is flexible! As a result I have decided to work on the majority of my thesis from Canada. The flexibility of Lund is one of the most appealing aspects of the school. I believe that is what sets it apart from other schools and it is a very forward thinking approach to learning.