Some stuff I did in Vienna
I didn't do a lot of touristy stuff in Vienna (I did eat of course), but here's a few things...
I went to the Central Library. It's pretty awesome, straddling a highway and a metro station, with lots of floors, a good view, and a restaurant at the very top.
The main library, in the museum quarter, is an architectural marvel in itself and costs 3eur to enter for a day. Since I was passing by late afternoon, I figured I'd come back when I had a full day to spend, but I never did.
I went for a run with H along the river. There are tons of good places to run. We also hiked through some vinyards, to the Alps. We found a lookout tower, but it was closed until May. There were some great views of the city on the way down.