The European diamond of Ukrainian heritage is being presented to the Lithuanian public and guests to the capital Vilnius at this international exhibition, Pidhirtsi Castle. History and Art Collections. The castle is an invaluable, geographically distant yet particularly significant cultural object of Ukraine, Poland and Lithuania collectively – the Pidhirtsi residence and the immense treasures of its historical collections. Today, its contents have spread afield and are being protected at a number of museums in Ukraine and Poland. Probably the largest and most valuable part of the collection ended up in the Borys Voznytsky Lviv National Art Gallery and the Lviv Historical Museum. Both museums are long-standing partners of the National Museum – Palace of the Grand Dukes of Lithuania and have participated in many exhibition projects, however this is the first time a collection of such scale from one residence is going to be presented. Up until now, only single treasures from the Pidhirtsi colllections have been displayed at themed exhibitions in Lithuania.