Vienna developed from early Celtic and Roman
settlements into a Medieval and Baroque city, the capital of the
Austro-Hungarian Empire. It played an essential role as a leading
European music centre, from the great age of Viennese Classicism through
the early part of the 20th century. The historic centre of Vienna is
rich in architectural ensembles, including Baroque castles and gardens,
as well as the late-19th-century Ringstrasse lined with grand buildings,
monuments and parks.