Everyone knows in Vienna you're supposed to hang in a cafe. So I went to the nearest one which was the Landtmann.
After seeing the lines to get into the other "name" cafes, we only had to wait a short time for a table. Just to manage your expectations, these places have become so popular with tourists that there's a whiff of Hard Rock about them now. You are ushered in, given a menu with pictures, get your coffee and strudel and ... well sit and look at the other tourists until you're done. The waiters were rushing to and fro and ours wanted little to do with us until we made some small talk and then he was our best friend (perhaps it's that friendly American thing again?).