I went to Dachau just outside Munich on a trip to that area in 2009.
As you would expect very sobering and depressing.
All the things that you would expect to upset you, did. So piles of shoes, various pictures and artefacts, the actual chambers that you could walk through.
However, this is the thing, this was a large town maybe 12 or 15 miles outside a major German city.
What I found most shocking was how very mundane, ordinary and everyday the setting was.