In 5 words: Stately, elegant and imperially magnificent.
For your first visit you need no less than 4 full days to be able to fully appreciate the city and all of its major sights while keeping pleasantly unhurried pace.
Distances are walkable in many cases, but you will need use of public transport to venture to some destinations.
Love its stunning architecture, enthralling squares, beautiful gardens, relatively unhurried pace.
Don’t miss: Walking the circle of central squares – Graben, Hoher Markt, Judenplatz, Am Hof, Freyung; making a trip to Grinzing for heurigen experience [further afield]; going to a Mozart or a Strauss concert, or both.
Worthy attractions: Alte Burg, especially Schatzkammer and Nationalbibliothek; Stephansdom; several arresting churches, especially Dominikanerkirche and Kapuzinerkirche (the latter housing Kaisergruft); horse training at Spanische Reitschule; Albertina; Kunsthistoriches Museum; Karlskirche, where you can climb up to see dome frescoes; Naschmarkt and a couple of examples of Jugendstil fronting it; Stadtpark with its popular Strauss statue (as well as several less popular others); Belvedere; Schwarzenbergplatz and the Red Army monument; Hundertwasser-Haus; Prater.
Destination appeal
Our verdict
Left for another visit: Schönbrunn palace [further afield]; Burgtheater [did not tour inside]; Staatsoper [did not tour inside]; Museum für Volkskunde.
Last visit: October 2005.

View from Vienna Cathedral tower