Pol'and'Rock Festival

Pol'and'Rock Festival, formerly known as Woodstock Festival Poland is an annual free rock music festival in Poland, inspired by the Woodstock festival. The festival has been held since 1995. In 2009 Woodstock Festival Poland gathered an audience of over 400,000 people, in 2011 the attendance was above 700,000, in 2012 about 550,000 people, in 2013 about 500,000 and in 2014 the attendance reached a record high of about 750,000. As of 2019, the aggregate attendance of the festival is 750,000 making it one of the biggest music festivals in the world.

Source: Wikipedia