Germany's entertainment culture is anchored by one of the world's most impressive networks of publicly funded performing arts institutions. Germany has more opera houses than any other country in the world — over 80, including the Bavarian State Opera, the Hamburg State Opera, and the Berlin State Opera — reflecting a national commitment to public performance subsidy that has no equivalent in scale anywhere. The Bayreuth Festival, dedicated entirely to Wagner's operas in a theatre he designed himself, is one of the world's most significant annual cultural events and the most consistently over-subscribed. The Berlin International Film Festival (Berlinale) is one of the world's three major film festivals alongside Cannes and Venice. Rock am Ring and Hurricane Festival, the Cologne Carnival, and the Munich Oktoberfest each add mass popular entertainment registers to a country whose cultural variety is genuinely difficult to summarise.