An alpine heart of Central Europe and the seat of the Habsburgs for six centuries, where imperial capitals sit within easy walking of medieval old towns and mountain edges. Read the Roman fort beneath Vienna's Innere Stadt, cross the courtyards of the Hofburg, and walk the grand Ringstrasse built where the city walls once stood. Baroque squares, cathedral cities, and boulevards made for walking, best taken slowly. Go at your own pace and on your own schedule.