Russia's entertainment culture is anchored by performing arts institutions of global significance that the country funds at a level no other national government matches. The Bolshoi Ballet and Bolshoi Opera in Moscow are the most internationally recognised, but the Mariinsky Theatre in St. Petersburg is considered by many music professionals the superior institution, producing opera and ballet productions of exceptional quality. The Moscow International Film Festival, the White Nights Festival in St. Petersburg (a month of late-evening outdoor concerts in the never-dark June sky), and the Golden Mask theatre festival each anchor the formal cultural calendar. Russian circus, with its specific tradition of acrobatic skill and animal training, and the Maslenitsa (Shrovetide) pancake festival street entertainments add popular registers to a country whose performing arts culture is a genuine national priority.