Vienna is an Austrian State. It is the capital of the Republic of Austria and by far the largest city in the Austria with its population of more than 1.7 million. It is the city with a very high quality of life, a feature that is highly appreciated by the many visitors who come to the Austrian Capital. Vienna is also said to be "city of dreams" because it was home to the world first psycho analyst. The city roots lie in the early Celtic and Roman settlements that transformed into a medieval and Baroque city. It is well known for having played an essential role as a leading European music centre.