You may well have heard of Munich. Not least because Belinda and Mark have lived there for over 10 years! You may not have heard of Wolfenbüttel. Hopefully this omission in your “knowledge base” will be remedied very soon!
The Deutsche Bahn (German Railways) offer a seriously impressive timetable system – covers the whole of Europe (including that Island to the North West). Try it!
In München there is a very comprehensive public transport system including over and underground rail, Trams, Buses, Bikes, Car Hire etc etc etc. The “MVV App” is definitely your friend and worth downloading.