The hook
The capital of a vanished empire that still lives like one, all imperial boulevards and gilded concert halls, where the coffee houses are protected culture and even the vast central cemetery is a destination.
01Why it's worth it
Vienna spent centuries as the seat of the Habsburgs, and when the empire fell the city kept the stage set: the Ringstrasse's parade of palaces and museums, the Baroque Schönbrunn, opera and classical music woven through daily life in a way few cities still manage. Its particular institution is the coffee house, a listed part of the country's intangible heritage, where the deal is that you buy one coffee and are left alone to read for hours. The art is world-class, headed by Klimt's gold-ground Kiss. The city has a slightly morbid, formal streak too, and it runs deep enough that the Zentralfriedhof, an enormous cemetery holding Beethoven, Brahms, and Schubert, is a genuine place to spend an afternoon. It can feel stiff, but that formality is the character, not a flaw.
02How to experience it
Give a coffee house a real hour rather than a quick stop; order a melange, take a newspaper, and don't be rushed. Balance the imperial sights with the darker, quieter Vienna: the cemetery, the Central European unease under the gilt. Standing-room opera tickets go for a few euros if you queue.
From the locals
Vienna's reputation for coldness is the thing visitors arrive braced for, and the most emphatic account in the r/solotravel Austria thread is a direct rebuttal from someone who stayed a month: "So much skepticism about how cold and distant people are there. I've traveled a lot, and Vienna is my favorite city (I was also there during the start of winter). People are fun + you can make friends very easily."
Their method for that is the useful part, and it applies to most cities where the reserve is real but shallow: "no you don't need to know German, just go to the same places 2-3x." Familiarity does the work that forwardness does elsewhere. They also recommend learning a little German anyway, because "people will like you more."
On what to consume while doing it: "food is great there (schniztel, läsekrainer, leberkäse, tafelspitz, a billion types of schnaps). Great natural wine scene. Music is good - go to some underground shows." (Spellings are the commenter's own.)
The wider steer, from someone who spent a year living in the country: don't "assume Austria's just Skiing and Vienna — the Danube Valley and Wachau are beautiful, as is the rolling hilly country of southern Burgenland and Styria."