Novi Sad is mostly famous for its yearly music festival called EXIT. During these days the city is packed with young people from all around Europe, partying, drinking, and dancing. The festival takes place inside the old fortress, Petrovaradin. At other times the city can seems a bit quiet, even though it is the second largest in Serbia. Beside the fortress, the town has a grand cathedral and a beautiful main square lined with elaborated houses build in what architect-minded would call neoclassic style.