Girls in traditional Bavarian clothes toast with one-litre beer mugs during the opening day of the Oktoberfest in Munich September 17, 2005. Millions of beer drinkers from around the world will come to the Bavarian capital Munich for the world's biggest and most famous beer festival, the Oktoberfest. The 172st Oktoberfest lasts from September 17 until October 3. Some six million people are expected to visit 14 enormous tents, each capable of holding up to 10,000 people at a time, drinking some 5.5 million litres (1.453 million U.S. gallons) of beer in the process.