Croatian National Theatre, Zagreb
The Croatian National Theatre in Zagreb (Croatian: Hrvatsko narodno kazalište u Zagrebu), commonly referred to as HNK Zagreb (pronounced [xa en ka]), is a theatre, opera, and ballet house in Zagreb. Located on the centre of Republic of Croatia Square, it is the oldest Croatian theatre institution, officially opening on 24 November 1860.
Source: Wikipedia — Croatian National Theatre, Zagreb (CC BY-SA 4.0)