Climb Up St. Peter's Church
A good rule of thumb to find the best viewpoint in any old European city is to look for some sort of clock towers or cathedrals where one can usually climb up and get a nice view over the city, and Munich is a prime city for that. St. Peter's Church is one of the best places to do just that. Considered to be the oldest church in Munich, St. Peter's Church is one of the most important landmarks in the city.
It is well located right at the center of Marienplatz, the old town area, and it has a 56 meters high lookout tower with a 360° platform that will allow you to admire the beauty of Munich from above. In order to get access to this platform, you are going to have to pay 5 EUR to get inside the tower, and then you will have to brave your way up the 300 steps until you arrive at the top. The church opens daily from 12:00 AM to 4:30 PM every day except on Easter Friday, Shrove Tuesday, and New Year's Day.