The Ljubljana Opera House (Slovene: Opera, or ljubljanska operna hiša) is an opera house in Ljubljana, the capital of Slovenia. The seat of the national opera and ballet company, the Ljubljana Slovene National Theatre Opera and Ballet, it serves as the national opera building of the country. It stands at 1 Župančič Street (Župančičeva 1) between the Slovenian Parliament building, on one hand, and the National Museum and the National Gallery, on the other hand.

https://en.wikipedia.org/wiki/Ljubljana_Opera_House