Vienna
The Ringstraße runs around the first district and was built in the second half of the 19th century. The street follows the old city walls which were destroyed to create it. Along the street you can find different important buildings like the Staatsoper (opera house), the parliament, the Burgtheater, the two museums of natural history and arts. Also, the Wiener Postsparkasse which is an important building by the architect Otto Wagner is along the street.