Oktoberfest is open. Mayor Dieter Reiter officially started Oktoberfest at noon when he inserted the tap into the first keg, signaling the 189th start of the festival. Thousands of beer lovers celebrated in the Munich fairground as the first to clink their mugs during the world’s largest folk festival.

Ceremonial keg-tapping signals the start of Oktoberfest, opening the world’s largest folk festival for the 189th time

Strong, amber-colored Marzenbier is the traditional beer served at Oktoberfest in Munich, Germany. But it's now found only in the United States.