Khamoro World Roma Festival participants dancing through the historical center of Prague, the Czech Republic, on Friday. /VCG Photo

The Khamoro, the largest and most famous professional Roma festival in the world, has been organized by the NGO Slovo 21 in Prague since 1999. /VCG Photo

In recent years, attendance has reached nearly 100,000. The foundation of the festival is Roma music, which represents an important part of the world's cultural heritage. /VCG Photo