The sixth day of our trip was planned mainly around a visit to the Auschwitz-Birkenau Memorial and Museum. I'm not intending to write about that experience, except to note that it reinforced the horrors of what the Nazi regime did during the second world war in a very real way.
Before we could get there, however, we had a five hour drive from Austria to Poland, crossing through the Czech Republic en route. Though there was a substantial charge for dropping off our rental car in a different country the hit was quite a bit less than the cost of one-way flights for two people, with the added benefit that we could travel on our own schedule. I identified three possible alpine coasters that were (mostly) on the way, but was only able to positively confirm one of them as being open, and the requirement to be at Auschwitz for mid-afternoon made it impractical to go to the others on spec.