This year we went to Vienna and Budapest; it was a package deal and we thought it would be fun.
Here's a statue in a convent in Myerling:

There were really neat cabinets in the convent with incredibly detailed carvings on them:

and this was on the ceiling in one room.

Here's where Leon Trostky hung out.

The movie
The Third Man has a scene where Cotton and Welles go up on a ferris wheel and look down on humanity. Here's a shot of the ferris wheel that was used.

Vienna has some lovely buildings, like its National Library.