I will be visiting Munich October 1st to the 3rd, which is the end of Oktoberfest and Unity Day; one of the days also is a Sunday. A German friend of mine told me that a lot of places close for Sunday and Unity Day. Any ideas on where to look to know if the places I want to visit will be closed during my time there? Any help or advice is welcome! :)
Stores are closed on Sundays & holidays. Museums shouldn't be closed, but to be sure check their websites. Walking tours, bike tours, and bus tours will be running. Restaurants will all be open.
What did you want to see or do in Munich?
I was wanting to do some walking tours of the town, hit up some of the museums like the BMW-welt museum, Egyptian, Munich city, nymphenburg palace complex, Residenz complex, and maybe The Dachau memorial....I'm trying to research what I can realistically see in my time frame we leave on the 4th for Fussen.
For the BMW Museum and BMW Welt, the "Opening Times" web page is here. Note that BMW Welt and the BMW Museum are not the same thing. Welt is more-or-less a new-car showroom and delivery center on steroids with some worthwhile exhibits, food, and a good gift shop. It is open seven days a week until midnight, and admission is free. The museum is across the street under the cylindrical BMW office tower; there is an admission fee and it is closed on Mondays. The only holiday closures for both appear to be over Christmas and New Years.
The self-guided walking tour of central Munich in Rick Steves' Germany guidebook is excellent. It can take anywhere from two hours to two days, depending on your levels of interest and curiosity. Audio version is available for download here. The city's website offers free downloadable maps and audioguides for self-guided thematic walks tracing Munich's role in the rise and fall of National Socialism.
The City Museum is closed on Mondays, but open on Unity Day (see website). The Egyptian Museum's website says, "The museum is open on the following bank holidays: [...] the German National Holiday (October 3rd)."
Hope this helps.