Lithuanian Song Celebration (Song and Dance Festival) 90th anniversary, Vilnius, Lithuania (4 July 2014). 'Presentation of the Baltic Tribes', performed in the courtyard of the Palace of the Grand Dukes of Lithuania. The Song and Dance Festival in Vilnius is Lithuania's greatest cultural event, occurring only once every four years, and along with similar festivals in Latvia and Estonia, is inscribed on the UNESCO list of Intangible Cultural Heritage. © Rudolf Abraham.