In Vienna, standard German (Hochdeutsch) is spoken and understood by everyone, but locals often converse using a Central Austro-Bavarian variant or local Wienerisch (Viennese) dialect. In Austria, there are many dialects, and this is just one of dozens of varieties. Serbian, Croatian and Bosnian is the largest minority language group in the city, but Turkish is also widely spoken by the significant immigrant population, particularly in districts like Favoriten (the 10th district). Other smaller minority languages include Hungarian, Polish, Romanian, Slovak, Czech and Slovenian, because all of these countries were part of the Austro-Hungarian Empire at various times throughout the nineteenth century. English is generally spoken as the primary foreign language, especially among younger generations who learn it early in school.
In Austria, we use the euro (€), which is also the common currency of many other countries in the European Union (EU). If you travel to countries such as Germany, France, Italy or Spain, you can use the same money without having to exchange it.
But the euro hasn't been around forever! Before adopting it, Austria had its own currency called the Austrian schilling.