Milwaukee's First Alternative Polka Festival. The 2nd Annual Milwaukee Polka Riot Festival this year will be held in Walker’s Point. This free, one day event will feature an incredible list of alternative polka bands from around the world -playing together for one night under the Polish moon. The Milwaukee Polka Riot will feature dual stages (indoor and outdoor), a house DJ, drinks, local food trucks, ticket raffle, and more. From hip-hop polka, bluegrass polka, to "polkacore" we have it all!