The present dream in particular scarcely left any room for doubt, since the place where my patient fell was the Graben, a part of Vienna notorious as a promenade for prostitutes.
A promenade is a formal dance at a school or college which is usually held at the end of the academic year. = prom, ball. Public place where people walk (or, in the past, rode) at leisure for pleasure, exercise, or display. Promenades are pedestrian avenues pleasingly landscaped or commanding a view, often located along waterfronts and in parks. Vehicular traffic may or may not be restricted
Couples side by side in skaters hold, left hand in right in front or allemande man slightly behind lady right hand in right, left in left in a vee formation at shoulder height