The Viennese coffee house (Wiener Kaffeehaus) is a typical institution of Vienna that played an important part shaping Viennese culture. Since October 2011 the "Viennese Coffee House Culture" is listed as Unesco's "Intangible Cultural Heritage".
The postcard shows Cafe-Konditorei Demel famous for its sweet stuffs; and the 2nd postcard a well-known Austrian dessert, popular in the former Austria–Hungary and Bavaria, called Kaiserschmarrn. It is actually made with eggs but also sugar so it can be both a dessert and a light meal..! I have made this at my sister's place in Bavaria and she has sent me the recipe to remind me :)