Various happenings dedicated to performing arts take place in Umbria during the year: classic, jazz and folk music, theatre, classic ballet and modern dance. The most popular one is the worldwide known Umbria Jazz festival, during which Jazz stars and emerging artists and bands gather in Perugia for concerts, jam-sessions, seminars and conferences held in parks, squares, churches and theatres of Perugia and its surroundings. Many other interesting Festivals take place all around the region, such as the Festival dei Due Mondi in Spoleto, the Festival delle Nazioni in Città di Castello, the Jazz.it Fest in Terni, the Umbria Folk Festival and Umbria Jazz Winter in Orvieto, the Todi Theatre Festival the Narni Black Festival and many others.