One of Munich’s trademark sights, also called ‘Dom zu unserer lieben Frau’. Free entry to the main church, including an underground chamber located at the far back. Definitely worth checking out.
While the inside of Frauenkirche isn’t nearly as spectacular or magnificent as the likes of Schloss Nymphenburg, Residenz München, etc. you can climb one of the towers to have a good view over Munich.
The platform is not on the outside though, so you have to look through (rather small) windows.
In terms of great views over central Munich, I definitely prefer to Climb up ‘Alter Peter’ instead of the Frauenkirche tower.