Would recommend walking from Karlsplatz (Stachus) Station down the street to all the famous landmarks and tourist attraction. Otherwise, you can also alight at Marienplatz station which is in the middle of the busy district where the New town hall is at. Can start your day by walking at the busy shopping street or sip a cup of coffee in a cafe along a small street have a relaxing afternoon doing people watch it is the best thing to do there.