Hope this is not too off-topic: we collected a couple of things to do in Vienna if you are staying over the weekend. Feel free to extend the list!
Spots are grouped by geographic locations into three parts.
(1a) Ikea roof top
Nice view, you can go there for free also without shopping. Next to train station “Westbahnhof”
(not the central train station).
Mo-Fr: 09:30-20:00 Uhr, Sa 09:30-18:00
(1b) Shopping street: Maria-Hilferstraße
Example for a successful project to reduce car traffic in the city:
(1c) MQ Libelle
Roof top bar in the MQ (musuems), accessible also without consumption
(1d) Restraunts around
Lolo & Lola (Filipino cuisine)
(2a) Spittelau: garbage incineration plant
Built by the architect Hundertwasser.
Karl-Marx-Hof (English: Karl Marx Court) is one of the best-known Gemeindebauten (English: municipal housing complexes) in Vienna, situated in Heiligenstadt, a neighbourhood of the 19th district of Vienna, Döbling.
Tour at 1pm every Sunday, 10 EUR, not sure if they offer an English tour:
(2c) Winery (“Heuriger”)
You can find wineries west of “Heiligenstadt”, accessible either by walking or a bus.
Search on google maps for “Heuriger” or “Buschenschank”. Check time tables: