Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Historic Centre of Vienna' has mentioned 'Opera House' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Up until 2005, the Theater an der Wien has hosted premieres of musicals, although with the year of the Mozart celebrations 2006 it has devoted itself to the opera again and has since become a stagione opera house offering one new production each month, thus quickly becoming one of Europe's most interesting and advanced opera houses. | WIKI |
| To this was added the opera house as well as a large number of public and private buildings along the Ringstrasse, on the line of the demolished city walls. | UNESCO |