What to See
Dachau Concentration Camp
There is a ton to do in Munich, Beer Halls are at every turn and there is a monumental amount of history on every corner, but one activity that I think is important for any full tour of Europe is visiting a concentration camp. Many of them are deep in the hills and not near any other major attractions, so it is an easy thing to overlook, But Dachau is only a short ways out of Munich and the company New Europe runs a day tour. The tour leaves at 10am from Hauotbahnof (next to Starbucks). It's a little expensive at 21 EU or 18 EU for students, but it's worth it. The tour guides are very informative and it is a hard site to fully appreciate on your own. http://www.newmunichtours.com/
What to Do
One of the best landmarks in Munich lies a few metres away from Marienplatz, the St. Peters Kirche. It offers an affordable way to see the expansive city footprint that is Munich (1 € students, 1.50 € regular), offering a 360° view of the old city from the historical city centre and, if you're lucky, a clear view of the Alps. The inside of the church is amazingly decorated as well, and is definitely a must see for people visiting Munich.