An interesting legend about the beginning of Western use of coffee is that after the siege of Vienna in 1683, the retreating Turkish armies abandoned their coffee supplies and equipment on the field. To celebrate victory over the Turks, bakers made a special pastry in the shape of a crescent - today's croissant.
However pretty a story, this is probably not true. There is good evidence that coffee was present in Vienna and many other Western cities before the 1683 siege. I'm not sure about the croissants - I need to do more research (which of course, includes consumption!).
There is a good paper on the history of coffee here, that includes a debunking of the Vienna myth.
There's a nice page in English on Viennese coffee houses here.
Get a slice of Sachertorte to eat while you sip your Maragogype, sit down, and read.