If youve already seen viennas grand imperial attractions or you just want a different perspective on the austrian capital enjoy this walking tour of underground sites see a different side of the city as you head below ground with a knowledgeable guide to explore the crypt of st michaels church where more than 4 000 bodies were interred beginning in the 16th century youll also visit the roman excavation on michaelerplatz and tour the citys historical cellars this walking tour is limit