what is the biggest festival in the world
4. Rock In Rio: First held in Rio de Janeiro, Brazil in 1985, Rock in Rio became one of the largest music festivals of its kind in the world. Aside from its Brazilian location, it is held in three other cities; Madrid, Spain; Lisbon, Portugal and, for the first time this year, Las Vegas, Nevada.ltra: Ultra is the biggest electronic music festival in the United States. It takes place every year in Miami, Florida. Since 1999, Ultra has grown from a small underground weekend festival to an annual gathering of hundreds of thousands of people. Last year, the festival was attended by 330,000 concert goers. 9.