Young women celebrate the opening of the 181th Oktoberfest beer festival in Munich, southern Germany, Saturday, September 20, 2014. (Photo by Matthias Schrader/AP Photo)

People enjoy a fairground ride at the 181st Oktoberfest beer festival in Munich, southern Germany, Saturday, September 20, 2014. (Photo by Matthias Schrader/AP Photo)

Visitors toast with their one-liter beer mugs during the opening day of the 181st Oktoberfest in Munich September 20, 2014. Millions of beer drinkers from around the world will come to the Bavarian capital over the next two weeks for the Oktoberfest, which starts today and runs until October 5. (Photo by Michael Dalder/Reuters)

A man celebrates the opening of the 181st Oktoberfest beer festival in Munich, southern Germany, Saturday, September 20, 2014. (Photo by Matthias Schrader/AP Photo)

People rest on a meadow on the opening day of the 181st Oktoberfest beer festival in Munich, southern Germany, Saturday, September 20, 2014. (Photo by Matthias Schrader/AP Photo)

People enjoy the opening day of the 181st Oktoberfest beer festival in Munich, southern Germany, Saturday, September 20, 2014. The world's largest beer festival will be held from Sept. 20 to Oct. 5, 2014. (Photo by Matthias Schrader/AP Photo)

A waitress carries mugs of beer during the opening day of the 181st Oktoberfest in Munich September 20, 2014. (Photo by Michael Dalder/Reuters)

Men wearing traditional Bavarian costumes walk a dog during the traditional Bavarian Oktoberfest festival in Munich, southern Germany, on September 20, 2014. Germany's world-famous Oktoberfest kicks off with millions of revellers set to soak up the frothy atmosphere in a 16-day extravaganza of lederhosen, oompah music and, of course, beer. (Photo by Christian Charisius/AFP Photo/DPA)

A waiter carries a tray of roast chicken during the opening day of the 181st Oktoberfest in Munich September 20, 2014. (Photo by Lukas Barth/Reuters)

Waitresses Beli, right, and Anika pose with beer mugs during the opening of the 181th Oktoberfest beer festival in Munich, southern Germany, Saturday, September 20, 2014. (Photo by Matthias Schrader/AP Photo)

British visitors wearing Bavarian costumes walk ahead the opening of the traditional Bavarian Oktoberfest festival at the Theresienwiese in Munich, southern Germany, on September 20, 2014. Germany's world-famous Oktoberfest kicks off with millions of revellers set to soak up the frothy atmosphere in a 16-day extravaganza of lederhosen, oompah music and, of course, beer. (Photo by Karl-Josef Hildenbrand/AFP Photo/DPA)

Young woman celebrate the opening of the 181st Oktoberfest beer festival on a decorated horse-drawn carriage in Munich, southern Germany, Saturday, September 20, 2014. (Photo by Matthias Schrader/AP Photo)

Waitresses rest besides visitors on a meadow on the opening day of the 181st Oktoberfest beer festival in Munich, southern Germany, Saturday, September 20, 2014. (Photo by Matthias Schrader/AP Photo)

A gingerbread heart is pictured during the 181st Oktoberfest in Munich September 20, 2014. (Photo by Lukas Barth/Reuters)

People ride a merry-go-round in front of St. Paul church at the 181st Oktoberfest beer festival in Munich, southern Germany, Saturday, September 20, 2014. (Photo by Matthias Schrader/AP Photo)

Visitors celebrate with first beer mugs the opening of the traditional Bavarian Oktoberfest festival at the Theresienwiese in Munich, southern Germany, on September 20, 2014. (Photo by Christof Stache/AFP Photo)

Visitors enjoy a fun ride on the opening day of the traditional Bavarian Oktoberfest festival at the Theresienwiese fair grounds in Munich, southern Germany, on September 20, 2014. (Photo by Christof Stache/AFP Photo)