Music tourism involves traveling to cities or towns to attend music festivals or performances. This type of tourism is important for both small villages like Glastonbury in bringing visitors, as well as large cities like Glasgow. Major music festivals around the world that attract international tourists include Rio Carnival in Brazil with 500,000 foreign visitors, and the Salvador de Bahia carnival with crowds of up to two million people. The largest music festival is considered to be Summerfest in Milwaukee, Wisconsin, which sees nearly 1 million attendees over its 11-day duration.