Great blog, and a great trip. If you have time for a side trip...a must see is Cesky Krumlov. A beautiful medieval style of village just south of Prague, and yes you stand there wondering & imagining the people that lived and breathed in the centuries earlier. According to your map it is just about the halfway point between the southern and northern part of your trip loop.
Aww, Gerry! Your suggestion is one day too late... I'm in Vienna now.